76891341664 has 12 divisors (see below), whose sum is σ = 151379828964. Its totient is φ = 38445670816.

The previous prime is 76891341647. The next prime is 76891341673. The reversal of 76891341664 is 46614319867.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1201427182 + ... + 1201427245.

It is an arithmetic number, because the mean of its divisors is an integer number (12614985747).

Almost surely, 2^76891341664 is an apocalyptic number.

It is an amenable number.

76891341664 is a deficient number, since it is larger than the sum of its proper divisors (74488487300).

76891341664 is a wasteful number, since it uses less digits than its factorization.

76891341664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2402854437 (or 2402854429 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 55.

The spelling of 76891341664 in words is "seventy-six billion, eight hundred ninety-one million, three hundred forty-one thousand, six hundred sixty-four".