76681983534 has 32 divisors (see below), whose sum is σ = 168277453344. Its totient is φ = 23149276800.

The previous prime is 76681983523. The next prime is 76681983551. The reversal of 76681983534 is 43538918667.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 9270417 + ... + 9278684.

It is an arithmetic number, because the mean of its divisors is an integer number (5258670417).

Almost surely, 2^76681983534 is an apocalyptic number.

76681983534 is an abundant number, since it is smaller than the sum of its proper divisors (91595469810).

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

76681983534 is a wasteful number, since it uses less digits than its factorization.

76681983534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18549172.

The product of its digits is 26127360, while the sum is 60.

The spelling of 76681983534 in words is "seventy-six billion, six hundred eighty-one million, nine hundred eighty-three thousand, five hundred thirty-four".