38138000115578 has 16 divisors (see below), whose sum is σ = 63858976939296. Its totient is φ = 16932304490640.

The previous prime is 38138000115547. The next prime is 38138000115617. The reversal of 38138000115578 is 87551100083183.

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, 20157504401 + ... + 20157506292.

It is an arithmetic number, because the mean of its divisors is an integer number (3991186058706).

Almost surely, 2^{38138000115578} is an apocalyptic number.

38138000115578 is a deficient number, since it is larger than the sum of its proper divisors (25720976823718).

38138000115578 is a wasteful number, since it uses less digits than its factorization.

38138000115578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40315010749.

The product of its (nonzero) digits is 806400, while the sum is 50.

The spelling of 38138000115578 in words is "thirty-eight trillion, one hundred thirty-eight billion, one hundred fifteen thousand, five hundred seventy-eight".