2495640699 has 40 divisors (see below), whose sum is σ = 3793379040. Its totient is φ = 1634774400.

The previous prime is 2495640683. The next prime is 2495640739. The reversal of 2495640699 is 9960465942.

It is a happy number.

2495640699 is a `hidden beast` number, since 2 + 495 + 64 + 0 + 6 + 99 = 666.

It is not a de Polignac number, because 2495640699 - 2⁴ = 2495640683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2495640619) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2351629 + ... + 2352689.

It is an arithmetic number, because the mean of its divisors is an integer number (94834476).

Almost surely, 2^2495640699 is an apocalyptic number.

2495640699 is a deficient number, since it is larger than the sum of its proper divisors (1297738341).

2495640699 is a wasteful number, since it uses less digits than its factorization.

2495640699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553 (or 1544 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 54.

The square root of 2495640699 is about 49956.3879699083. The cubic root of 2495640699 is about 1356.4194851045.

The spelling of 2495640699 in words is "two billion, four hundred ninety-five million, six hundred forty thousand, six hundred ninety-nine".