74478877605 has 48 divisors (see below), whose sum is σ = 141093613440. Its totient is φ = 36044092800.

The previous prime is 74478877579. The next prime is 74478877661. The reversal of 74478877605 is 50677887447.

It is not a de Polignac number, because 74478877605 - 2⁸ = 74478877349 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 128736 + ... + 406854.

It is an arithmetic number, because the mean of its divisors is an integer number (2939450280).

Almost surely, 2^74478877605 is an apocalyptic number.

It is an amenable number.

74478877605 is a deficient number, since it is larger than the sum of its proper divisors (66614735835).

74478877605 is a wasteful number, since it uses less digits than its factorization.

74478877605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278682 (or 278679 counting only the distinct ones).

The product of its (nonzero) digits is 73758720, while the sum is 63.

The spelling of 74478877605 in words is "seventy-four billion, four hundred seventy-eight million, eight hundred seventy-seven thousand, six hundred five".