916939983240 has 64 divisors (see below), whose sum is σ = 3056466614400. Its totient is φ = 244517328576.

The previous prime is 916939983229. The next prime is 916939983257. The reversal of 916939983240 is 42389939619.

916939983240 is a `hidden beast` number, since 9 + 169 + 399 + 83 + 2 + 4 + 0 = 666.

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, 424508172 + ... + 424510331.

It is an arithmetic number, because the mean of its divisors is an integer number (47757290850).

Almost surely, 2^916939983240 is an apocalyptic number.

916939983240 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

916939983240 is an abundant number, since it is smaller than the sum of its proper divisors (2139526631160).

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

916939983240 is a wasteful number, since it uses less digits than its factorization.

916939983240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849018523 (or 849018513 counting only the distinct ones).

The product of its (nonzero) digits is 22674816, while the sum is 63.

The spelling of 916939983240 in words is "nine hundred sixteen billion, nine hundred thirty-nine million, nine hundred eighty-three thousand, two hundred forty".