77256417351 has 32 divisors (see below), whose sum is σ = 110022442240. Its totient is φ = 48078261504.

The previous prime is 77256417311. The next prime is 77256417379. The reversal of 77256417351 is 15371465277.

It is not a de Polignac number, because 77256417351 - 2¹⁰ = 77256416327 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 77256417351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77256417311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4539480 + ... + 4556466.

It is an arithmetic number, because the mean of its divisors is an integer number (3438201320).

Almost surely, 2^77256417351 is an apocalyptic number.

77256417351 is a deficient number, since it is larger than the sum of its proper divisors (32766024889).

77256417351 is a wasteful number, since it uses less digits than its factorization.

77256417351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18175.

The product of its digits is 1234800, while the sum is 48.

The spelling of 77256417351 in words is "seventy-seven billion, two hundred fifty-six million, four hundred seventeen thousand, three hundred fifty-one".