923820642988 has 24 divisors (see below), whose sum is σ = 1711963711584. Its totient is φ = 434693817600.

The previous prime is 923820642977. The next prime is 923820642991. The reversal of 923820642988 is 889246028329.

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, 46168 + ... + 1360063.

It is an arithmetic number, because the mean of its divisors is an integer number (71331821316).

Almost surely, 2^923820642988 is an apocalyptic number.

It is an amenable number.

923820642988 is a deficient number, since it is larger than the sum of its proper divisors (788143068596).

923820642988 is a wasteful number, since it uses less digits than its factorization.

923820642988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415913 (or 1415911 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 61.

The spelling of 923820642988 in words is "nine hundred twenty-three billion, eight hundred twenty million, six hundred forty-two thousand, nine hundred eighty-eight".