74687603555057 has 2 divisors, whose sum is σ = 74687603555058. Its totient is φ = 74687603555056.

The previous prime is 74687603555009. The next prime is 74687603555101. The reversal of 74687603555057 is 75055530678647.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67242558424336 + 7445045130721 = 8200156^2 + 2728561^2 .

It is a cyclic number.

It is not a de Polignac number, because 74687603555057 - 2⁸ = 74687603554801 is a prime.

It is not a weakly prime, because it can be changed into another prime (74687603525057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37343801777528 + 37343801777529.

It is an arithmetic number, because the mean of its divisors is an integer number (37343801777529).

Almost surely, 2^{74687603555057} is an apocalyptic number.

It is an amenable number.

74687603555057 is a deficient number, since it is larger than the sum of its proper divisors (1).

74687603555057 is an equidigital number, since it uses as much as digits as its factorization.

74687603555057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 740880000, while the sum is 68.

The spelling of 74687603555057 in words is "seventy-four trillion, six hundred eighty-seven billion, six hundred three million, five hundred fifty-five thousand, fifty-seven".