38038891513 has 32 divisors (see below), whose sum is σ = 45210057984. Its totient is φ = 31326124032.

The previous prime is 38038891489. The next prime is 38038891529. The reversal of 38038891513 is 31519883083.

It is not a de Polignac number, because 38038891513 - 2²¹ = 38036794361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38038891313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9337245 + ... + 9341317.

It is an arithmetic number, because the mean of its divisors is an integer number (1412814312).

Almost surely, 2^38038891513 is an apocalyptic number.

It is an amenable number.

38038891513 is a deficient number, since it is larger than the sum of its proper divisors (7171166471).

38038891513 is a wasteful number, since it uses less digits than its factorization.

38038891513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4561.

The product of its (nonzero) digits is 622080, while the sum is 49.

The spelling of 38038891513 in words is "thirty-eight billion, thirty-eight million, eight hundred ninety-one thousand, five hundred thirteen".