2625918813 has 24 divisors (see below), whose sum is σ = 4340700416. Its totient is φ = 1498500000.

The previous prime is 2625918781. The next prime is 2625918857. The reversal of 2625918813 is 3188195262.

2625918813 is a `hidden beast` number, since 2 + 625 + 9 + 1 + 8 + 8 + 13 = 666.

2625918813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2625918813 - 2⁵ = 2625918781 is a prime.

It is a super-2 number, since 2×2625918813² = 13790899224934657938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2625918863) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19563 + ... + 75063.

Almost surely, 2^2625918813 is an apocalyptic number.

It is an amenable number.

2625918813 is a deficient number, since it is larger than the sum of its proper divisors (1714781603).

2625918813 is a wasteful number, since it uses less digits than its factorization.

2625918813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56265 (or 56262 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 2625918813 is about 51243.7197420328. The cubic root of 2625918813 is about 1379.6230176949.

The spelling of 2625918813 in words is "two billion, six hundred twenty-five million, nine hundred eighteen thousand, eight hundred thirteen".