16938986694720 has 112 divisors (see below), whose sum is σ = 53787675414528. Its totient is φ = 4516526202880.

The previous prime is 16938986694713. The next prime is 16938986694737. The reversal of 16938986694720 is 2749668983961.

It is a Smith number, since the sum of its digits (78) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7064680 + ... + 9153560.

Almost surely, 2^{16938986694720} is an apocalyptic number.

16938986694720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16938986694720 is an abundant number, since it is smaller than the sum of its proper divisors (36848688719808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16938986694720 is a wasteful number, since it uses less digits than its factorization.

16938986694720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2097348 (or 2097338 counting only the distinct ones).

The product of its (nonzero) digits is 1693052928, while the sum is 78.

The spelling of 16938986694720 in words is "sixteen trillion, nine hundred thirty-eight billion, nine hundred eighty-six million, six hundred ninety-four thousand, seven hundred twenty".