2650899645 has 24 divisors (see below), whose sum is σ = 4598263800. Its totient is φ = 1412775936.

The previous prime is 2650899637. The next prime is 2650899653. The reversal of 2650899645 is 5469980562.

It is a happy number.

2650899645 is a `hidden beast` number, since 2 + 6 + 508 + 9 + 96 + 45 = 666.

It is an interprime number because it is at equal distance from previous prime (2650899637) and next prime (2650899653).

It can be written as a sum of positive squares in 4 ways, for example, as 35497764 + 2615401881 = 5958^2 + 51141^2 .

It is not a de Polignac number, because 2650899645 - 2³ = 2650899637 is a prime.

It is a super-2 number, since 2×2650899645² = 14054537855722252050, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2650899591 and 2650899600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42501 + ... + 84309.

It is an arithmetic number, because the mean of its divisors is an integer number (191594325).

Almost surely, 2^2650899645 is an apocalyptic number.

It is an amenable number.

2650899645 is a deficient number, since it is larger than the sum of its proper divisors (1947364155).

2650899645 is a wasteful number, since it uses less digits than its factorization.

2650899645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43229 (or 43226 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 54.

The square root of 2650899645 is about 51486.8880881337. Note that the first 3 decimals coincide. The cubic root of 2650899645 is about 1383.9840838506.

The spelling of 2650899645 in words is "two billion, six hundred fifty million, eight hundred ninety-nine thousand, six hundred forty-five".