75556000761457 has 2 divisors, whose sum is σ = 75556000761458. Its totient is φ = 75556000761456.

The previous prime is 75556000761419. The next prime is 75556000761463. The reversal of 75556000761457 is 75416700065557.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69514256425441 + 6041744336016 = 8337521^2 + 2457996^2 .

It is a cyclic number.

It is not a de Polignac number, because 75556000761457 - 2²³ = 75555992372849 is a prime.

It is not a weakly prime, because it can be changed into another prime (75556000765457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37778000380728 + 37778000380729.

It is an arithmetic number, because the mean of its divisors is an integer number (37778000380729).

Almost surely, 2^{75556000761457} is an apocalyptic number.

It is an amenable number.

75556000761457 is a deficient number, since it is larger than the sum of its proper divisors (1).

75556000761457 is an equidigital number, since it uses as much as digits as its factorization.

75556000761457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30870000, while the sum is 58.

The spelling of 75556000761457 in words is "seventy-five trillion, five hundred fifty-six billion, seven hundred sixty-one thousand, four hundred fifty-seven".