15973231008 has 96 divisors (see below), whose sum is σ = 50738534784. Its totient is φ = 4295319552.

The previous prime is 15973231003. The next prime is 15973231019. The reversal of 15973231008 is 80013237951.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (15973231003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 687685 + ... + 710532.

It is an arithmetic number, because the mean of its divisors is an integer number (528526404).

Almost surely, 2^15973231008 is an apocalyptic number.

It is an amenable number.

15973231008 is an abundant number, since it is smaller than the sum of its proper divisors (34765303776).

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

15973231008 is a wasteful number, since it uses less digits than its factorization.

15973231008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398254 (or 1398246 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

Adding to 15973231008 its reverse (80013237951), we get a palindrome (95986468959).

The spelling of 15973231008 in words is "fifteen billion, nine hundred seventy-three million, two hundred thirty-one thousand, eight".