38913793434 has 24 divisors (see below), whose sum is σ = 87220572660. Its totient is φ = 12523979328.

The previous prime is 38913793421. The next prime is 38913793453. The reversal of 38913793434 is 43439731983.

38913793434 is a `hidden beast` number, since 3 + 8 + 91 + 37 + 93 + 434 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 35647328025 + 3266465409 = 188805^2 + 57153^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37273227 + ... + 37274270.

Almost surely, 2^38913793434 is an apocalyptic number.

38913793434 is an abundant number, since it is smaller than the sum of its proper divisors (48306779226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38913793434 is a wasteful number, since it uses less digits than its factorization.

38913793434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74547534 (or 74547531 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 54.

The spelling of 38913793434 in words is "thirty-eight billion, nine hundred thirteen million, seven hundred ninety-three thousand, four hundred thirty-four".