16797947490 has 48 divisors (see below), whose sum is σ = 44075374200. Its totient is φ = 4438354176.

The previous prime is 16797947483. The next prime is 16797947561. The reversal of 16797947490 is 9474979761.

16797947490 is a `hidden beast` number, since 1 + 6 + 7 + 9 + 79 + 474 + 90 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 13892629689 + 2905317801 = 117867^2 + 53901^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 846355 + ... + 865974.

Almost surely, 2^16797947490 is an apocalyptic number.

16797947490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16797947490 is an abundant number, since it is smaller than the sum of its proper divisors (27277426710).

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

16797947490 is a wasteful number, since it uses less digits than its factorization.

16797947490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1712451 (or 1712448 counting only the distinct ones).

The product of its (nonzero) digits is 24004512, while the sum is 63.

The spelling of 16797947490 in words is "sixteen billion, seven hundred ninety-seven million, nine hundred forty-seven thousand, four hundred ninety".