76851251438 has 32 divisors (see below), whose sum is σ = 124668143712. Its totient is φ = 35320320000.

The previous prime is 76851251387. The next prime is 76851251453. The reversal of 76851251438 is 83415215867.

It is a super-2 number, since 2×76851251438² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16443470 + ... + 16448142.

It is an arithmetic number, because the mean of its divisors is an integer number (3895879491).

Almost surely, 2^76851251438 is an apocalyptic number.

76851251438 is a deficient number, since it is larger than the sum of its proper divisors (47816892274).

76851251438 is a wasteful number, since it uses less digits than its factorization.

76851251438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7220.

The product of its digits is 1612800, while the sum is 50.

The spelling of 76851251438 in words is "seventy-six billion, eight hundred fifty-one million, two hundred fifty-one thousand, four hundred thirty-eight".