15959117438 has 32 divisors (see below), whose sum is σ = 28294168320. Its totient is φ = 6668645760.

The previous prime is 15959117437. The next prime is 15959117483. The reversal of 15959117438 is 83471195951.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 15959117438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15959117437) 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 15 ways as a sum of consecutive naturals, for example, 480098 + ... + 512261.

It is an arithmetic number, because the mean of its divisors is an integer number (884192760).

Almost surely, 2^15959117438 is an apocalyptic number.

15959117438 is a deficient number, since it is larger than the sum of its proper divisors (12335050882).

15959117438 is a wasteful number, since it uses less digits than its factorization.

15959117438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992432.

The product of its digits is 1360800, while the sum is 53.

The spelling of 15959117438 in words is "fifteen billion, nine hundred fifty-nine million, one hundred seventeen thousand, four hundred thirty-eight".