76486305643856 has 80 divisors (see below), whose sum is σ = 149683005388800. Its totient is φ = 37860212208000.

The previous prime is 76486305643831. The next prime is 76486305643879. The reversal of 76486305643856 is 65834650368467.

It is a self number, because there is not a number n which added to its sum of digits gives 76486305643856.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7122287735 + ... + 7122298473.

It is an arithmetic number, because the mean of its divisors is an integer number (1871037567360).

Almost surely, 2^{76486305643856} is an apocalyptic number.

It is an amenable number.

76486305643856 is a deficient number, since it is larger than the sum of its proper divisors (73196699744944).

76486305643856 is a wasteful number, since it uses less digits than its factorization.

76486305643856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20688 (or 20682 counting only the distinct ones).

The product of its (nonzero) digits is 2090188800, while the sum is 71.

The spelling of 76486305643856 in words is "seventy-six trillion, four hundred eighty-six billion, three hundred five million, six hundred forty-three thousand, eight hundred fifty-six".