2640251095 has 8 divisors (see below), whose sum is σ = 3170733264. Its totient is φ = 2110579584.

The previous prime is 2640251087. The next prime is 2640251161. The reversal of 2640251095 is 5901520462.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2640251095 - 2³ = 2640251087 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2640251095.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195474 + ... + 208543.

It is an arithmetic number, because the mean of its divisors is an integer number (396341658).

Almost surely, 2^2640251095 is an apocalyptic number.

2640251095 is a deficient number, since it is larger than the sum of its proper divisors (530482169).

2640251095 is a wasteful number, since it uses less digits than its factorization.

2640251095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405329.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 2640251095 is about 51383.3737214675. The cubic root of 2640251095 is about 1382.1284621061.

The spelling of 2640251095 in words is "two billion, six hundred forty million, two hundred fifty-one thousand, ninety-five".