74127934817 has 2 divisors, whose sum is σ = 74127934818. Its totient is φ = 74127934816.

The previous prime is 74127934763. The next prime is 74127934871. The reversal of 74127934817 is 71843972147.

Together with next prime (74127934871) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (74127934763) and next prime (74127934871).

It can be written as a sum of positive squares in only one way, i.e., 72315815056 + 1812119761 = 268916^2 + 42569^2 .

It is an emirp because it is prime and its reverse (71843972147) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74127934817 - 2¹⁶ = 74127869281 is a prime.

It is not a weakly prime, because it can be changed into another prime (74127934877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37063967408 + 37063967409.

It is an arithmetic number, because the mean of its divisors is an integer number (37063967409).

Almost surely, 2^74127934817 is an apocalyptic number.

It is an amenable number.

74127934817 is a deficient number, since it is larger than the sum of its proper divisors (1).

74127934817 is an equidigital number, since it uses as much as digits as its factorization.

74127934817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2370816, while the sum is 53.

The spelling of 74127934817 in words is "seventy-four billion, one hundred twenty-seven million, nine hundred thirty-four thousand, eight hundred seventeen".