38387525810138 has 16 divisors (see below), whose sum is σ = 59440377740544. Its totient is φ = 18574100482080.

The previous prime is 38387525810093. The next prime is 38387525810159. The reversal of 38387525810138 is 83101852578383.

It is a super-2 number, since 2×38387525810138² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (62).

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, 6192995 + ... + 10729782.

It is an arithmetic number, because the mean of its divisors is an integer number (3715023608784).

Almost surely, 2^{38387525810138} is an apocalyptic number.

38387525810138 is a deficient number, since it is larger than the sum of its proper divisors (21052851930406).

38387525810138 is a wasteful number, since it uses less digits than its factorization.

38387525810138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16959397.

The product of its (nonzero) digits is 38707200, while the sum is 62.

It can be divided in two parts, 38387 and 525810138, that added together give a palindrome (525848525).

The spelling of 38387525810138 in words is "thirty-eight trillion, three hundred eighty-seven billion, five hundred twenty-five million, eight hundred ten thousand, one hundred thirty-eight".