16038531907 has 8 divisors (see below), whose sum is σ = 16587576320. Its totient is φ = 15491467080.

The previous prime is 16038531829. The next prime is 16038531919. The reversal of 16038531907 is 70913583061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16038531907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16038531937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478407 + ... + 510832.

It is an arithmetic number, because the mean of its divisors is an integer number (2073447040).

Almost surely, 2^16038531907 is an apocalyptic number.

16038531907 is a deficient number, since it is larger than the sum of its proper divisors (549044413).

16038531907 is an equidigital number, since it uses as much as digits as its factorization.

16038531907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989793.

The product of its (nonzero) digits is 136080, while the sum is 43.

The spelling of 16038531907 in words is "sixteen billion, thirty-eight million, five hundred thirty-one thousand, nine hundred seven".