74437432136 has 32 divisors (see below), whose sum is σ = 140277459000. Its totient is φ = 37030556160.

The previous prime is 74437432099. The next prime is 74437432141. The reversal of 74437432136 is 63123473447.

It can be written as a sum of positive squares in 4 ways, for example, as 29278632100 + 45158800036 = 171110^2 + 212506^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1327190 + ... + 1382138.

Almost surely, 2^74437432136 is an apocalyptic number.

It is an amenable number.

74437432136 is a deficient number, since it is larger than the sum of its proper divisors (65840026864).

74437432136 is a wasteful number, since it uses less digits than its factorization.

74437432136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55809 (or 55805 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 44.

The spelling of 74437432136 in words is "seventy-four billion, four hundred thirty-seven million, four hundred thirty-two thousand, one hundred thirty-six".