74605256535133 has 2 divisors, whose sum is σ = 74605256535134. Its totient is φ = 74605256535132.

The previous prime is 74605256535113. The next prime is 74605256535149. The reversal of 74605256535133 is 33153565250647.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64691184144889 + 9914072390244 = 8043083^2 + 3148662^2 .

It is a cyclic number.

It is not a de Polignac number, because 74605256535133 - 2⁵ = 74605256535101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74605256535113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37302628267566 + 37302628267567.

It is an arithmetic number, because the mean of its divisors is an integer number (37302628267567).

Almost surely, 2^{74605256535133} is an apocalyptic number.

It is an amenable number.

74605256535133 is a deficient number, since it is larger than the sum of its proper divisors (1).

74605256535133 is an equidigital number, since it uses as much as digits as its factorization.

74605256535133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020000, while the sum is 55.

The spelling of 74605256535133 in words is "seventy-four trillion, six hundred five billion, two hundred fifty-six million, five hundred thirty-five thousand, one hundred thirty-three".