79259703961 has 3 divisors (see below), whose sum is σ = 79259985493. Its totient is φ = 79259422430.

The previous prime is 79259703911. The next prime is 79259704021. The reversal of 79259703961 is 16930795297.

The square root of 79259703961 is 281531.

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 a de Polignac number, because none of the positive numbers 2^k-79259703961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79259703896 and 79259703905.

It is not an unprimeable number, because it can be changed into a prime (79259703911) 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, 140766 + ... + 422296.

Almost surely, 2^79259703961 is an apocalyptic number.

79259703961 is the 281531-st square number.

79259703961 is the 140766-th centered octagonal number.

It is an amenable number.

79259703961 is a deficient number, since it is larger than the sum of its proper divisors (281532).

79259703961 is an frugal number, since it uses more digits than its factorization.

79259703961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563062 (or 281531 counting only the distinct ones).

The product of its (nonzero) digits is 6429780, while the sum is 58.

The spelling of 79259703961 in words is "seventy-nine billion, two hundred fifty-nine million, seven hundred three thousand, nine hundred sixty-one".