75447488474457 has 32 divisors (see below), whose sum is σ = 116197936089984. Its totient is φ = 43035728486400.

The previous prime is 75447488474441. The next prime is 75447488474467.

75447488474457 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 75447488474457 - 2⁴ = 75447488474441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75447488474467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117544357 + ... + 118184477.

It is an arithmetic number, because the mean of its divisors is an integer number (3631185502812).

Almost surely, 2^{75447488474457} is an apocalyptic number.

It is an amenable number.

75447488474457 is a deficient number, since it is larger than the sum of its proper divisors (40750447615527).

75447488474457 is a wasteful number, since it uses less digits than its factorization.

75447488474457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850249.

The product of its digits is 15735193600, while the sum is 78.

The spelling of 75447488474457 in words is "seventy-five trillion, four hundred forty-seven billion, four hundred eighty-eight million, four hundred seventy-four thousand, four hundred fifty-seven".