38681534912 has 14 divisors (see below), whose sum is σ = 76758670968. Its totient is φ = 19340767424.

The previous prime is 38681534873. The next prime is 38681534917. The reversal of 38681534912 is 21943518683.

It is a happy number.

It is a super-2 number, since 2×38681534912² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38681534917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302199428 + ... + 302199555.

It is an arithmetic number, because the mean of its divisors is an integer number (5482762212).

Almost surely, 2^38681534912 is an apocalyptic number.

38681534912 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

38681534912 is a deficient number, since it is larger than the sum of its proper divisors (38077136056).

38681534912 is an equidigital number, since it uses as much as digits as its factorization.

38681534912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604398995 (or 604398985 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 50.

The spelling of 38681534912 in words is "thirty-eight billion, six hundred eighty-one million, five hundred thirty-four thousand, nine hundred twelve".