16938630854031 has 4 divisors (see below), whose sum is σ = 22584841138712. Its totient is φ = 11292420569352.

The previous prime is 16938630854017. The next prime is 16938630854059. The reversal of 16938630854031 is 13045803683961.

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

It is not a de Polignac number, because 16938630854031 - 2¹⁸ = 16938630591887 is a prime.

It is a super-2 number, since 2×16938630854031² (a number of 27 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 (16938630854011) 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, 2823105142336 + ... + 2823105142341.

It is an arithmetic number, because the mean of its divisors is an integer number (5646210284678).

Almost surely, 2^{16938630854031} is an apocalyptic number.

16938630854031 is a deficient number, since it is larger than the sum of its proper divisors (5646210284681).

16938630854031 is an equidigital number, since it uses as much as digits as its factorization.

16938630854031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5646210284680.

The product of its (nonzero) digits is 11197440, while the sum is 57.

The spelling of 16938630854031 in words is "sixteen trillion, nine hundred thirty-eight billion, six hundred thirty million, eight hundred fifty-four thousand, thirty-one".