7875201138 has 64 divisors (see below), whose sum is σ = 18790249728. Its totient is φ = 2153329920.

The previous prime is 7875201121. The next prime is 7875201163. The reversal of 7875201138 is 8311025787.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 7875201138.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53256 + ... + 136332.

It is an arithmetic number, because the mean of its divisors is an integer number (293597652).

Almost surely, 2^7875201138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7875201138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9395124864).

7875201138 is an abundant number, since it is smaller than the sum of its proper divisors (10915048590).

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

7875201138 is a wasteful number, since it uses less digits than its factorization.

7875201138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83187.

The product of its (nonzero) digits is 94080, while the sum is 42.

The square root of 7875201138 is about 88742.3300235012. The cubic root of 7875201138 is about 1989.5455422084.

It can be divided in two parts, 787 and 5201138, that added together give a triangular number (5201925 = T₃₂₂₅).

The spelling of 7875201138 in words is "seven billion, eight hundred seventy-five million, two hundred one thousand, one hundred thirty-eight".