923989699831 has 12 divisors (see below), whose sum is σ = 1017209565792. Its totient is φ = 838680128000.

The previous prime is 923989699783. The next prime is 923989699883. The reversal of 923989699831 is 138996989329.

It is not a de Polignac number, because 923989699831 - 2⁹ = 923989699319 is a prime.

It is a super-2 number, since 2×923989699831² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (923989699891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5878975 + ... + 6034096.

It is an arithmetic number, because the mean of its divisors is an integer number (84767463816).

Almost surely, 2^923989699831 is an apocalyptic number.

923989699831 is a deficient number, since it is larger than the sum of its proper divisors (93219865961).

923989699831 is a wasteful number, since it uses less digits than its factorization.

923989699831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11913734 (or 11913723 counting only the distinct ones).

The product of its digits is 408146688, while the sum is 76.

The spelling of 923989699831 in words is "nine hundred twenty-three billion, nine hundred eighty-nine million, six hundred ninety-nine thousand, eight hundred thirty-one".