9815946513039 has 32 divisors (see below), whose sum is σ = 14560192650240. Its totient is φ = 6535847002176.

The previous prime is 9815946513007. The next prime is 9815946513041. The reversal of 9815946513039 is 9303156495189.

9815946513039 is a `hidden beast` number, since 9 + 8 + 1 + 5 + 9 + 465 + 130 + 39 = 666.

It is not a de Polignac number, because 9815946513039 - 2⁵ = 9815946513007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9815946513539) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72168154 + ... + 72304040.

It is an arithmetic number, because the mean of its divisors is an integer number (455006020320).

Almost surely, 2^{9815946513039} is an apocalyptic number.

9815946513039 is a deficient number, since it is larger than the sum of its proper divisors (4744246137201).

9815946513039 is a wasteful number, since it uses less digits than its factorization.

9815946513039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139196 (or 139190 counting only the distinct ones).

The product of its (nonzero) digits is 31492800, while the sum is 63.

The spelling of 9815946513039 in words is "nine trillion, eight hundred fifteen billion, nine hundred forty-six million, five hundred thirteen thousand, thirty-nine".