75387126612 has 72 divisors (see below), whose sum is σ = 205478743680. Its totient is φ = 21449016960.

The previous prime is 75387126593. The next prime is 75387126641. The reversal of 75387126612 is 21662178357.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127689 + ... + 408752.

It is an arithmetic number, because the mean of its divisors is an integer number (2853871440).

Almost surely, 2^75387126612 is an apocalyptic number.

It is an amenable number.

75387126612 is an abundant number, since it is smaller than the sum of its proper divisors (130091617068).

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

75387126612 is a wasteful number, since it uses less digits than its factorization.

75387126612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536701 (or 536692 counting only the distinct ones).

The product of its digits is 846720, while the sum is 48.

The spelling of 75387126612 in words is "seventy-five billion, three hundred eighty-seven million, one hundred twenty-six thousand, six hundred twelve".