2071754330881 has 3 divisors (see below), whose sum is σ = 2071755770241. Its totient is φ = 2071752891522.

The previous prime is 2071754330879. The next prime is 2071754330897. The reversal of 2071754330881 is 1880334571702.

It is a happy number.

The square root of 2071754330881 is 1439359.

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 is not a de Polignac number, because 2071754330881 - 2¹ = 2071754330879 is a prime.

It is a super-2 number, since 2×2071754330881² (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 (2071754330281) 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, 719680 + ... + 2159038.

It is an arithmetic number, because the mean of its divisors is an integer number (690585256747).

Almost surely, 2^{2071754330881} is an apocalyptic number.

2071754330881 is the 1439359-th square number.

2071754330881 is the 719680-th centered octagonal number.

It is an amenable number.

2071754330881 is a deficient number, since it is larger than the sum of its proper divisors (1439360).

2071754330881 is an frugal number, since it uses more digits than its factorization.

2071754330881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2878718 (or 1439359 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 49.

Multiplying 2071754330881 by its sum of digits (49), we get a square (101515962213169 = 10075513²).

The spelling of 2071754330881 in words is "two trillion, seventy-one billion, seven hundred fifty-four million, three hundred thirty thousand, eight hundred eighty-one".