16807984149879 has 48 divisors (see below), whose sum is σ = 27120137408000. Its totient is φ = 10341077214816.

The previous prime is 16807984149871. The next prime is 16807984149907. The reversal of 16807984149879 is 97894148970861.

16807984149879 is a `hidden beast` number, since 1 + 6 + 80 + 7 + 9 + 8 + 41 + 498 + 7 + 9 = 666.

It is not a de Polignac number, because 16807984149879 - 2³ = 16807984149871 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a junction number, because it is equal to n+sod(n) for n = 16807984149798 and 16807984149807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16807984149871) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13686822 + ... + 14864220.

Almost surely, 2^{16807984149879} is an apocalyptic number.

16807984149879 is a deficient number, since it is larger than the sum of its proper divisors (10312153258121).

16807984149879 is a wasteful number, since it uses less digits than its factorization.

16807984149879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1181946 (or 1181934 counting only the distinct ones).

The product of its (nonzero) digits is 1755758592, while the sum is 81.

The spelling of 16807984149879 in words is "sixteen trillion, eight hundred seven billion, nine hundred eighty-four million, one hundred forty-nine thousand, eight hundred seventy-nine".