16868367031 has 4 divisors (see below), whose sum is σ = 16869455064. Its totient is φ = 16867279000.

The previous prime is 16868366993. The next prime is 16868367053. The reversal of 16868367031 is 13076386861.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16868367031 is a prime.

It is a super-2 number, since 2×16868367031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16868367071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 520420 + ... + 551881.

It is an arithmetic number, because the mean of its divisors is an integer number (4217363766).

Almost surely, 2^16868367031 is an apocalyptic number.

16868367031 is a deficient number, since it is larger than the sum of its proper divisors (1088033).

16868367031 is a wasteful number, since it uses less digits than its factorization.

16868367031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088032.

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 16868367031 in words is "sixteen billion, eight hundred sixty-eight million, three hundred sixty-seven thousand, thirty-one".