2651153681 has 16 divisors (see below), whose sum is σ = 2942042688. Its totient is φ = 2388675520.

The previous prime is 2651153669. The next prime is 2651153717. The reversal of 2651153681 is 1863511562.

It is a de Polignac number, because none of the positive numbers 2^k-2651153681 is a prime.

It is a super-2 number, since 2×2651153681² = 14057231680559699522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2651158681) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 141590 + ... + 159216.

It is an arithmetic number, because the mean of its divisors is an integer number (183877668).

Almost surely, 2^2651153681 is an apocalyptic number.

It is an amenable number.

2651153681 is a deficient number, since it is larger than the sum of its proper divisors (290889007).

2651153681 is a wasteful number, since it uses less digits than its factorization.

2651153681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17773 (or 17751 counting only the distinct ones).

The product of its digits is 43200, while the sum is 38.

The square root of 2651153681 is about 51489.3550260634. The cubic root of 2651153681 is about 1384.0282915533.

The spelling of 2651153681 in words is "two billion, six hundred fifty-one million, one hundred fifty-three thousand, six hundred eighty-one".