75713721412 has 36 divisors (see below), whose sum is σ = 157890826044. Its totient is φ = 31657301760.

The previous prime is 75713721353. The next prime is 75713721427. The reversal of 75713721412 is 21412731757.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10390540356 + 65323181056 = 101934^2 + 255584^2 .

It is a super-2 number, since 2×75713721412² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4702873 + ... + 4718944.

It is an arithmetic number, because the mean of its divisors is an integer number (4385856279).

Almost surely, 2^75713721412 is an apocalyptic number.

It is an amenable number.

75713721412 is an abundant number, since it is smaller than the sum of its proper divisors (82177104632).

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

75713721412 is a wasteful number, since it uses less digits than its factorization.

75713721412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9421876 (or 9421867 counting only the distinct ones).

The product of its digits is 82320, while the sum is 40.

The spelling of 75713721412 in words is "seventy-five billion, seven hundred thirteen million, seven hundred twenty-one thousand, four hundred twelve".