74492869541 has 2 divisors, whose sum is σ = 74492869542. Its totient is φ = 74492869540.

The previous prime is 74492869523. The next prime is 74492869603. The reversal of 74492869541 is 14596829447.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74462948641 + 29920900 = 272879^2 + 5470^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74492869541 is a prime.

It is a super-2 number, since 2×74492869541² (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 (74492869511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37246434770 + 37246434771.

It is an arithmetic number, because the mean of its divisors is an integer number (37246434771).

Almost surely, 2^74492869541 is an apocalyptic number.

It is an amenable number.

74492869541 is a deficient number, since it is larger than the sum of its proper divisors (1).

74492869541 is an equidigital number, since it uses as much as digits as its factorization.

74492869541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17418240, while the sum is 59.

The spelling of 74492869541 in words is "seventy-four billion, four hundred ninety-two million, eight hundred sixty-nine thousand, five hundred forty-one".