7799782110481 has 3 divisors (see below), whose sum is σ = 7799784903291. Its totient is φ = 7799779317672.

The previous prime is 7799782110431. The next prime is 7799782110529. The reversal of 7799782110481 is 1840112879977.

The square root of 7799782110481 is 2792809.

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., 10324388881 + 7789457721600 = 101609^2 + 2790960^2 .

It is a de Polignac number, because none of the positive numbers 2^k-7799782110481 is a prime.

It is a super-2 number, since 2×7799782110481² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7799782110431) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1396405 + ... + 4189213.

It is an arithmetic number, because the mean of its divisors is an integer number (2599928301097).

Almost surely, 2^{7799782110481} is an apocalyptic number.

7799782110481 is the 2792809-th square number.

7799782110481 is the 1396405-th centered octagonal number.

It is an amenable number.

7799782110481 is a deficient number, since it is larger than the sum of its proper divisors (2792810).

7799782110481 is an frugal number, since it uses more digits than its factorization.

7799782110481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5585618 (or 2792809 counting only the distinct ones).

The product of its (nonzero) digits is 14224896, while the sum is 64.

Multiplying 7799782110481 by its sum of digits (64), we get a square (499186055070784 = 22342472²).

The spelling of 7799782110481 in words is "seven trillion, seven hundred ninety-nine billion, seven hundred eighty-two million, one hundred ten thousand, four hundred eighty-one".