75791990136 has 32 divisors (see below), whose sum is σ = 190200447360. Its totient is φ = 25167933792.

The previous prime is 75791990123. The next prime is 75791990143. The reversal of 75791990136 is 63109919757.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5997490 + ... + 6010113.

It is an arithmetic number, because the mean of its divisors is an integer number (5943763980).

Almost surely, 2^75791990136 is an apocalyptic number.

It is an amenable number.

75791990136 is an abundant number, since it is smaller than the sum of its proper divisors (114408457224).

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

75791990136 is a wasteful number, since it uses less digits than its factorization.

75791990136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12007875 (or 12007871 counting only the distinct ones).

The product of its (nonzero) digits is 3214890, while the sum is 57.

The spelling of 75791990136 in words is "seventy-five billion, seven hundred ninety-one million, nine hundred ninety thousand, one hundred thirty-six".