77256015234 has 8 divisors (see below), whose sum is σ = 154512030480. Its totient is φ = 25752005076.

The previous prime is 77256015203. The next prime is 77256015323. The reversal of 77256015234 is 43251065277.

It is a sphenic number, since it is the product of 3 distinct primes.

77256015234 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6438001264 + ... + 6438001275.

It is an arithmetic number, because the mean of its divisors is an integer number (19314003810).

Almost surely, 2^77256015234 is an apocalyptic number.

77256015234 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77256015234 is a wasteful number, since it uses less digits than its factorization.

77256015234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12876002544.

The product of its (nonzero) digits is 352800, while the sum is 42.

The spelling of 77256015234 in words is "seventy-seven billion, two hundred fifty-six million, fifteen thousand, two hundred thirty-four".