74261776544 has 12 divisors (see below), whose sum is σ = 146202872634. Its totient is φ = 37130888256.

The previous prime is 74261776541. The next prime is 74261776597. The reversal of 74261776544 is 44567716247.

It can be written as a sum of positive squares in only one way, i.e., 55159219600 + 19102556944 = 234860^2 + 138212^2 .

It is a super-2 number, since 2×74261776544² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74261776541) 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, 1160340227 + ... + 1160340290.

Almost surely, 2^74261776544 is an apocalyptic number.

It is an amenable number.

74261776544 is a deficient number, since it is larger than the sum of its proper divisors (71941096090).

74261776544 is a wasteful number, since it uses less digits than its factorization.

74261776544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2320680527 (or 2320680519 counting only the distinct ones).

The product of its digits is 7902720, while the sum is 53.

The spelling of 74261776544 in words is "seventy-four billion, two hundred sixty-one million, seven hundred seventy-six thousand, five hundred forty-four".