916787975828 has 24 divisors (see below), whose sum is σ = 1609092511488. Its totient is φ = 457047531776.

The previous prime is 916787975797. The next prime is 916787975839. The reversal of 916787975828 is 828579787619.

916787975828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16185725 + ... + 16242267.

It is an arithmetic number, because the mean of its divisors is an integer number (67045521312).

Almost surely, 2^916787975828 is an apocalyptic number.

It is an amenable number.

916787975828 is a deficient number, since it is larger than the sum of its proper divisors (692304535660).

916787975828 is a wasteful number, since it uses less digits than its factorization.

916787975828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68383 (or 68381 counting only the distinct ones).

The product of its digits is 853493760, while the sum is 77.

The spelling of 916787975828 in words is "nine hundred sixteen billion, seven hundred eighty-seven million, nine hundred seventy-five thousand, eight hundred twenty-eight".