16972796477 has 8 divisors (see below), whose sum is σ = 20889595776. Its totient is φ = 13429025712.

The previous prime is 16972796443. The next prime is 16972796497. The reversal of 16972796477 is 77469727961.

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

It is a cyclic number.

It is not a de Polignac number, because 16972796477 - 2²⁰ = 16971747901 is a prime.

It is a super-2 number, since 2×16972796477² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16972796497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93257033 + ... + 93257214.

It is an arithmetic number, because the mean of its divisors is an integer number (2611199472).

Almost surely, 2^16972796477 is an apocalyptic number.

It is an amenable number.

16972796477 is a deficient number, since it is larger than the sum of its proper divisors (3916799299).

16972796477 is a wasteful number, since it uses less digits than its factorization.

16972796477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186514267.

The product of its digits is 56010528, while the sum is 65.

The spelling of 16972796477 in words is "sixteen billion, nine hundred seventy-two million, seven hundred ninety-six thousand, four hundred seventy-seven".