2495963618 has 4 divisors (see below), whose sum is σ = 3743945430. Its totient is φ = 1247981808.

The previous prime is 2495963599. The next prime is 2495963621. The reversal of 2495963618 is 8163695942.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2404627369 + 91336249 = 49037^2 + 9557^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2495963618.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 623990903 + ... + 623990906.

Almost surely, 2^2495963618 is an apocalyptic number.

2495963618 is a deficient number, since it is larger than the sum of its proper divisors (1247981812).

2495963618 is a wasteful number, since it uses less digits than its factorization.

2495963618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247981811.

The product of its digits is 2799360, while the sum is 53.

The square root of 2495963618 is about 49959.6198744546. The cubic root of 2495963618 is about 1356.4779864122.

The spelling of 2495963618 in words is "two billion, four hundred ninety-five million, nine hundred sixty-three thousand, six hundred eighteen".