74902931797 has 2 divisors, whose sum is σ = 74902931798. Its totient is φ = 74902931796.

The previous prime is 74902931791. The next prime is 74902931819. The reversal of 74902931797 is 79713920947.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63702731236 + 11200200561 = 252394^2 + 105831^2 .

It is an emirp because it is prime and its reverse (79713920947) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74902931797 - 2¹⁹ = 74902407509 is a prime.

It is a super-2 number, since 2×74902931797² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74902931791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37451465898 + 37451465899.

It is an arithmetic number, because the mean of its divisors is an integer number (37451465899).

Almost surely, 2^74902931797 is an apocalyptic number.

It is an amenable number.

74902931797 is a deficient number, since it is larger than the sum of its proper divisors (1).

74902931797 is an equidigital number, since it uses as much as digits as its factorization.

74902931797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6001128, while the sum is 58.

The spelling of 74902931797 in words is "seventy-four billion, nine hundred two million, nine hundred thirty-one thousand, seven hundred ninety-seven".