8139295038 has 96 divisors (see below), whose sum is σ = 19158456960. Its totient is φ = 2298421440.

The previous prime is 8139294991. The next prime is 8139295057. The reversal of 8139295038 is 8305929318.

It is a happy number.

It is a super-2 number, since 2×8139295038² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11103720 + ... + 11104452.

It is an arithmetic number, because the mean of its divisors is an integer number (199567260).

Almost surely, 2^8139295038 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8139295038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9579228480).

8139295038 is an abundant number, since it is smaller than the sum of its proper divisors (11019161922).

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

8139295038 is a wasteful number, since it uses less digits than its factorization.

8139295038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142 (or 1135 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 8139295038 is about 90218.0416435648. The cubic root of 8139295038 is about 2011.5411921686.

The spelling of 8139295038 in words is "eight billion, one hundred thirty-nine million, two hundred ninety-five thousand, thirty-eight".