75212391320 has 32 divisors (see below), whose sum is σ = 184612234320. Its totient is φ = 27349960320.

The previous prime is 75212391313. The next prime is 75212391337. The reversal of 75212391320 is 2319321257.

It is a super-2 number, since 2×75212391320² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85468187 + ... + 85469066.

Almost surely, 2^75212391320 is an apocalyptic number.

It is an amenable number.

75212391320 is an abundant number, since it is smaller than the sum of its proper divisors (109399843000).

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

75212391320 is a wasteful number, since it uses less digits than its factorization.

75212391320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170937275 (or 170937271 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 35.

The spelling of 75212391320 in words is "seventy-five billion, two hundred twelve million, three hundred ninety-one thousand, three hundred twenty".