2504197681 has 8 divisors (see below), whose sum is σ = 2546960000. Its totient is φ = 2461490640.

The previous prime is 2504197667. The next prime is 2504197727. The reversal of 2504197681 is 1867914052.

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-2504197681 is a prime.

It is a super-2 number, since 2×2504197681² = 12542012051051555522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2504197601) 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, 83320 + ... + 109318.

It is an arithmetic number, because the mean of its divisors is an integer number (318370000).

Almost surely, 2^2504197681 is an apocalyptic number.

It is an amenable number.

2504197681 is a deficient number, since it is larger than the sum of its proper divisors (42762319).

2504197681 is a wasteful number, since it uses less digits than its factorization.

2504197681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27639.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 2504197681 is about 50041.9592042518. The cubic root of 2504197681 is about 1357.9680008265.

The spelling of 2504197681 in words is "two billion, five hundred four million, one hundred ninety-seven thousand, six hundred eighty-one".