75472577450321 has 32 divisors (see below), whose sum is σ = 79243834914816. Its totient is φ = 71791780032000.

The previous prime is 75472577450287. The next prime is 75472577450323. The reversal of 75472577450321 is 12305477527457.

It is not a de Polignac number, because 75472577450321 - 2³⁸ = 75197699543377 is a prime.

It is a super-2 number, since 2×75472577450321² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75472577450323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6208151975 + ... + 6208164131.

It is an arithmetic number, because the mean of its divisors is an integer number (2476369841088).

Almost surely, 2^{75472577450321} is an apocalyptic number.

It is an amenable number.

75472577450321 is a deficient number, since it is larger than the sum of its proper divisors (3771257464495).

75472577450321 is a wasteful number, since it uses less digits than its factorization.

75472577450321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21393.

The product of its (nonzero) digits is 57624000, while the sum is 59.

The spelling of 75472577450321 in words is "seventy-five trillion, four hundred seventy-two billion, five hundred seventy-seven million, four hundred fifty thousand, three hundred twenty-one".