917023916140 has 24 divisors (see below), whose sum is σ = 1925833250880. Its totient is φ = 366793751808.

The previous prime is 917023916077. The next prime is 917023916143. The reversal of 917023916140 is 41619320719.

It is not an unprimeable number, because it can be changed into a prime (917023916143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 507220 + ... + 1446139.

It is an arithmetic number, because the mean of its divisors is an integer number (80243052120).

Almost surely, 2^917023916140 is an apocalyptic number.

It is an amenable number.

917023916140 is an abundant number, since it is smaller than the sum of its proper divisors (1008809334740).

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

917023916140 is a wasteful number, since it uses less digits than its factorization.

917023916140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1976841 (or 1976839 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 43.

The spelling of 917023916140 in words is "nine hundred seventeen billion, twenty-three million, nine hundred sixteen thousand, one hundred forty".