2163617902 has 4 divisors (see below), whose sum is σ = 3245426856. Its totient is φ = 1081808950.

The previous prime is 2163617899. The next prime is 2163617903. The reversal of 2163617902 is 2097163612.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163617903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540904474 + ... + 540904477.

It is an arithmetic number, because the mean of its divisors is an integer number (811356714).

Almost surely, 2^2163617902 is an apocalyptic number.

2163617902 is a deficient number, since it is larger than the sum of its proper divisors (1081808954).

2163617902 is a wasteful number, since it uses less digits than its factorization.

2163617902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081808953.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 2163617902 is about 46514.7062981161. The cubic root of 2163617902 is about 1293.3821275181.

The spelling of 2163617902 in words is "two billion, one hundred sixty-three million, six hundred seventeen thousand, nine hundred two".