2625996645 has 32 divisors (see below), whose sum is σ = 4683719040. Its totient is φ = 1395947520.

The previous prime is 2625996623. The next prime is 2625996649. The reversal of 2625996645 is 5466995262.

2625996645 is a `hidden beast` number, since 2 + 6 + 2 + 599 + 6 + 6 + 45 = 666.

It is not a de Polignac number, because 2625996645 - 2⁸ = 2625996389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2625996591 and 2625996600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2625996649) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9765 + ... + 73125.

It is an arithmetic number, because the mean of its divisors is an integer number (146366220).

Almost surely, 2^2625996645 is an apocalyptic number.

It is an amenable number.

2625996645 is a deficient number, since it is larger than the sum of its proper divisors (2057722395).

2625996645 is a wasteful number, since it uses less digits than its factorization.

2625996645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63682 (or 63676 counting only the distinct ones).

The product of its digits is 6998400, while the sum is 54.

The square root of 2625996645 is about 51244.4791660526. The cubic root of 2625996645 is about 1379.6366481948.

The spelling of 2625996645 in words is "two billion, six hundred twenty-five million, nine hundred ninety-six thousand, six hundred forty-five".