16974814021 has 8 divisors (see below), whose sum is σ = 18527493888. Its totient is φ = 15423720000.

The previous prime is 16974814001. The next prime is 16974814049. The reversal of 16974814021 is 12041847961.

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 16974814021 - 2⁷ = 16974813893 is a prime.

It is a super-2 number, since 2×16974814021² (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 (16974814001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374020 + ... + 416941.

It is an arithmetic number, because the mean of its divisors is an integer number (2315936736).

Almost surely, 2^16974814021 is an apocalyptic number.

16974814021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16974814021 is a deficient number, since it is larger than the sum of its proper divisors (1552679867).

16974814021 is a wasteful number, since it uses less digits than its factorization.

16974814021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792923.

The product of its (nonzero) digits is 96768, while the sum is 43.

The spelling of 16974814021 in words is "sixteen billion, nine hundred seventy-four million, eight hundred fourteen thousand, twenty-one".