38745962138 has 16 divisors (see below), whose sum is σ = 62595022560. Its totient is φ = 17881211376.

The previous prime is 38745962137. The next prime is 38745962153. The reversal of 38745962138 is 83126954783.

It is not an unprimeable number, because it can be changed into a prime (38745962137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277853 + ... + 393311.

It is an arithmetic number, because the mean of its divisors is an integer number (3912188910).

Almost surely, 2^38745962138 is an apocalyptic number.

38745962138 is a deficient number, since it is larger than the sum of its proper divisors (23849060422).

38745962138 is a wasteful number, since it uses less digits than its factorization.

38745962138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128381.

The product of its digits is 8709120, while the sum is 56.

The spelling of 38745962138 in words is "thirty-eight billion, seven hundred forty-five million, nine hundred sixty-two thousand, one hundred thirty-eight".