75623151138 has 24 divisors (see below), whose sum is σ = 152596764528. Its totient is φ = 24984614592.

The previous prime is 75623151137. The next prime is 75623151173. The reversal of 75623151138 is 83115132657.

It is a self number, because there is not a number n which added to its sum of digits gives 75623151138.

It is not an unprimeable number, because it can be changed into a prime (75623151137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 416920 + ... + 570147.

It is an arithmetic number, because the mean of its divisors is an integer number (6358198522).

Almost surely, 2^75623151138 is an apocalyptic number.

75623151138 is an abundant number, since it is smaller than the sum of its proper divisors (76973613390).

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

75623151138 is a wasteful number, since it uses less digits than its factorization.

75623151138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987298 (or 987185 counting only the distinct ones).

The product of its digits is 151200, while the sum is 42.

The spelling of 75623151138 in words is "seventy-five billion, six hundred twenty-three million, one hundred fifty-one thousand, one hundred thirty-eight".