75320840422564 has 27 divisors (see below), whose sum is σ = 144884049983841. Its totient is φ = 34236658859040.

The previous prime is 75320840422559. The next prime is 75320840422613. The reversal of 75320840422564 is 46522404802357.

The square root of 75320840422564 is 8678758.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 841178796964 + 74479661625600 = 917158^2 + 8630160^2 .

It is a super-2 number, since 2×75320840422564² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 190735432 + ... + 191129920.

Almost surely, 2^{75320840422564} is an apocalyptic number.

75320840422564 is the 8678758-th square number.

It is an amenable number.

75320840422564 is a deficient number, since it is larger than the sum of its proper divisors (69563209561277).

75320840422564 is an frugal number, since it uses more digits than its factorization.

75320840422564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789004 (or 394502 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 52.

The spelling of 75320840422564 in words is "seventy-five trillion, three hundred twenty billion, eight hundred forty million, four hundred twenty-two thousand, five hundred sixty-four".