2997185681 has 8 divisors (see below), whose sum is σ = 3427846464. Its totient is φ = 2567147760.

The previous prime is 2997185623. The next prime is 2997185707. The reversal of 2997185681 is 1865817992.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2997185681 is a prime.

It is a super-2 number, since 2×2997185681² = 17966244012782867522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2997145681) 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, 145355 + ... + 164688.

It is an arithmetic number, because the mean of its divisors is an integer number (428480808).

Almost surely, 2^2997185681 is an apocalyptic number.

It is an amenable number.

2997185681 is a deficient number, since it is larger than the sum of its proper divisors (430660783).

2997185681 is a wasteful number, since it uses less digits than its factorization.

2997185681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311431.

The product of its digits is 2177280, while the sum is 56.

The square root of 2997185681 is about 54746.5586224376. The cubic root of 2997185681 is about 1441.7984347216.

The spelling of 2997185681 in words is "two billion, nine hundred ninety-seven million, one hundred eighty-five thousand, six hundred eighty-one".