73138875368 has 16 divisors (see below), whose sum is σ = 147684267780. Its totient is φ = 33756403968.

The previous prime is 73138875349. The next prime is 73138875373. The reversal of 73138875368 is 86357883137.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 73138875364 + 4 = 270442^2 + 2^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351629105 + ... + 351629312.

Almost surely, 2^73138875368 is an apocalyptic number.

It is an amenable number.

73138875368 is an abundant number, since it is smaller than the sum of its proper divisors (74545392412).

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

73138875368 is a wasteful number, since it uses less digits than its factorization.

73138875368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703258436 (or 703258432 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 59.

The spelling of 73138875368 in words is "seventy-three billion, one hundred thirty-eight million, eight hundred seventy-five thousand, three hundred sixty-eight".