38115859090638 has 32 divisors (see below), whose sum is σ = 87135888155904. Its totient is φ = 10888504889472.

The previous prime is 38115859090567. The next prime is 38115859090667. The reversal of 38115859090638 is 83609095851183.

38115859090638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72257620 + ... + 72783207.

It is an arithmetic number, because the mean of its divisors is an integer number (2722996504872).

Almost surely, 2^{38115859090638} is an apocalyptic number.

38115859090638 is an abundant number, since it is smaller than the sum of its proper divisors (49020029065266).

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

38115859090638 is a wasteful number, since it uses less digits than its factorization.

38115859090638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145047096.

The product of its (nonzero) digits is 55987200, while the sum is 66.

The spelling of 38115859090638 in words is "thirty-eight trillion, one hundred fifteen billion, eight hundred fifty-nine million, ninety thousand, six hundred thirty-eight".