75138466608 has 30 divisors (see below), whose sum is σ = 210283347924. Its totient is φ = 25046155488.

The previous prime is 75138466591. The next prime is 75138466621. The reversal of 75138466608 is 80666483157.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 260897310 + ... + 260897597.

Almost surely, 2^75138466608 is an apocalyptic number.

It is an amenable number.

75138466608 is an abundant number, since it is smaller than the sum of its proper divisors (135144881316).

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

75138466608 is a wasteful number, since it uses less digits than its factorization.

75138466608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521794921 (or 521794912 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 75138466608 in words is "seventy-five billion, one hundred thirty-eight million, four hundred sixty-six thousand, six hundred eight".