2495639641 has 8 divisors (see below), whose sum is σ = 2745017568. Its totient is φ = 2268762100.

The previous prime is 2495639621. The next prime is 2495639647. The reversal of 2495639641 is 1469365942.

It is not a de Polignac number, because 2495639641 - 2⁹ = 2495639129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2495639647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 936175 + ... + 938836.

It is an arithmetic number, because the mean of its divisors is an integer number (343127196).

Almost surely, 2^2495639641 is an apocalyptic number.

It is an amenable number.

2495639641 is a deficient number, since it is larger than the sum of its proper divisors (249377927).

2495639641 is an equidigital number, since it uses as much as digits as its factorization.

2495639641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1875044 (or 1875022 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 49.

The square root of 2495639641 is about 49956.3773806708. The cubic root of 2495639641 is about 1356.4192934247.

The spelling of 2495639641 in words is "two billion, four hundred ninety-five million, six hundred thirty-nine thousand, six hundred forty-one".