79277543425 has 12 divisors (see below), whose sum is σ = 98560834560. Its totient is φ = 63256434320.

The previous prime is 79277543381. The next prime is 79277543431. The reversal of 79277543425 is 52434577297.

It is not a de Polignac number, because 79277543425 - 2⁹ = 79277542913 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4130245 + ... + 4149394.

It is an arithmetic number, because the mean of its divisors is an integer number (8213402880).

Almost surely, 2^79277543425 is an apocalyptic number.

It is an amenable number.

79277543425 is a deficient number, since it is larger than the sum of its proper divisors (19283291135).

79277543425 is a wasteful number, since it uses less digits than its factorization.

79277543425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8280032 (or 8280027 counting only the distinct ones).

The product of its digits is 14817600, while the sum is 55.

The spelling of 79277543425 in words is "seventy-nine billion, two hundred seventy-seven million, five hundred forty-three thousand, four hundred twenty-five".