2110653990481 has 3 divisors (see below), whose sum is σ = 2110655443291. Its totient is φ = 2110652537672.

The previous prime is 2110653990463. The next prime is 2110653990493. The reversal of 2110653990481 is 1840993560112.

It is a happy number.

The square root of 2110653990481 is 1452809.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 2106100440081 + 4553550400 = 1451241^2 + 67480^2 .

It is not a de Polignac number, because 2110653990481 - 2⁵ = 2110653990449 is a prime.

It is a super-2 number, since 2×2110653990481² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2110653990281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 726405 + ... + 2179213.

Almost surely, 2^{2110653990481} is an apocalyptic number.

2110653990481 is the 1452809-th square number.

2110653990481 is the 726405-th centered octagonal number.

It is an amenable number.

2110653990481 is a deficient number, since it is larger than the sum of its proper divisors (1452810).

2110653990481 is an frugal number, since it uses more digits than its factorization.

2110653990481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2905618 (or 1452809 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 49.

Multiplying 2110653990481 by its sum of digits (49), we get a square (103422045533569 = 10169663²).

The spelling of 2110653990481 in words is "two trillion, one hundred ten billion, six hundred fifty-three million, nine hundred ninety thousand, four hundred eighty-one".