2997694656 has 378 divisors, whose sum is σ = 9973459860. Its totient is φ = 892995840.

The previous prime is 2997694603. The next prime is 2997694829. The reversal of 2997694656 is 6564967992.

2997694656 is a `hidden beast` number, since 29 + 97 + 69 + 465 + 6 = 666.

It is a super-2 number, since 2×2997694656² = 17972346501221916672, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2997694593 and 2997694602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 50808355 + ... + 50808413.

Almost surely, 2^2997694656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2997694656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4986729930).

2997694656 is an abundant number, since it is smaller than the sum of its proper divisors (6975765204).

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

2997694656 is an frugal number, since it uses more digits than its factorization.

2997694656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117 (or 75 counting only the distinct ones).

The product of its digits is 44089920, while the sum is 63.

The square root of 2997694656 is about 54751.2068908074. The cubic root of 2997694656 is about 1441.8800443715.

The spelling of 2997694656 in words is "two billion, nine hundred ninety-seven million, six hundred ninety-four thousand, six hundred fifty-six".