2152718868 has 24 divisors (see below), whose sum is σ = 5028895872. Its totient is φ = 716732224.

The previous prime is 2152718839. The next prime is 2152718881. The reversal of 2152718868 is 8688172512.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

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, 94380 + ... + 114947.

It is an arithmetic number, because the mean of its divisors is an integer number (209537328).

Almost surely, 2^2152718868 is an apocalyptic number.

It is an amenable number.

2152718868 is an abundant number, since it is smaller than the sum of its proper divisors (2876177004).

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

2152718868 is a wasteful number, since it uses less digits than its factorization.

2152718868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210191 (or 210189 counting only the distinct ones).

The product of its digits is 430080, while the sum is 48.

The square root of 2152718868 is about 46397.4015220680. The cubic root of 2152718868 is about 1291.2067045244.

The spelling of 2152718868 in words is "two billion, one hundred fifty-two million, seven hundred eighteen thousand, eight hundred sixty-eight".