75157674217 has 2 divisors, whose sum is σ = 75157674218. Its totient is φ = 75157674216.

The previous prime is 75157674191. The next prime is 75157674239. The reversal of 75157674217 is 71247675157.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75157674201 + 16 = 274149^2 + 4^2 .

It is an emirp because it is prime and its reverse (71247675157) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75157674217 - 2²³ = 75149285609 is a prime.

It is not a weakly prime, because it can be changed into another prime (75157174217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37578837108 + 37578837109.

It is an arithmetic number, because the mean of its divisors is an integer number (37578837109).

Almost surely, 2^75157674217 is an apocalyptic number.

It is an amenable number.

75157674217 is a deficient number, since it is larger than the sum of its proper divisors (1).

75157674217 is an equidigital number, since it uses as much as digits as its factorization.

75157674217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2881200, while the sum is 52.

The spelling of 75157674217 in words is "seventy-five billion, one hundred fifty-seven million, six hundred seventy-four thousand, two hundred seventeen".