74136062464 has 20 divisors (see below), whose sum is σ = 148127328954. Its totient is φ = 37068030976.

The previous prime is 74136062423. The next prime is 74136062537. The reversal of 74136062464 is 46426063147.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 52444664064 + 21691398400 = 229008^2 + 147280^2 .

It is a super-2 number, since 2×74136062464² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 74136062464.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72397987 + ... + 72399010.

Almost surely, 2^74136062464 is an apocalyptic number.

It is an amenable number.

74136062464 is a deficient number, since it is larger than the sum of its proper divisors (73991266490).

74136062464 is an equidigital number, since it uses as much as digits as its factorization.

74136062464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144797015 (or 144796999 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 43.

The spelling of 74136062464 in words is "seventy-four billion, one hundred thirty-six million, sixty-two thousand, four hundred sixty-four".