2361638868 has 48 divisors (see below), whose sum is σ = 5673494400. Its totient is φ = 764121600.

The previous prime is 2361638833. The next prime is 2361638879. The reversal of 2361638868 is 8688361632.

It is a self number, because there is not a number n which added to its sum of digits gives 2361638868.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85848 + ... + 109968.

It is an arithmetic number, because the mean of its divisors is an integer number (118197800).

Almost surely, 2^2361638868 is an apocalyptic number.

It is an amenable number.

2361638868 is an abundant number, since it is smaller than the sum of its proper divisors (3311855532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2361638868 is a wasteful number, since it uses less digits than its factorization.

2361638868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24368 (or 24366 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 51.

The square root of 2361638868 is about 48596.6960605348. The cubic root of 2361638868 is about 1331.6941623034.

The spelling of 2361638868 in words is "two billion, three hundred sixty-one million, six hundred thirty-eight thousand, eight hundred sixty-eight".