2162868638 has 8 divisors (see below), whose sum is σ = 3707774832. Its totient is φ = 926943696.

The previous prime is 2162868623. The next prime is 2162868661. The reversal of 2162868638 is 8368682612.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77245295 + ... + 77245322.

It is an arithmetic number, because the mean of its divisors is an integer number (463471854).

Almost surely, 2^2162868638 is an apocalyptic number.

2162868638 is a deficient number, since it is larger than the sum of its proper divisors (1544906194).

2162868638 is a wasteful number, since it uses less digits than its factorization.

2162868638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154490626.

The product of its digits is 1327104, while the sum is 50.

The square root of 2162868638 is about 46506.6515457735. The cubic root of 2162868638 is about 1293.2328102485.

The spelling of 2162868638 in words is "two billion, one hundred sixty-two million, eight hundred sixty-eight thousand, six hundred thirty-eight".