2163756142 has 16 divisors (see below), whose sum is σ = 3388770720. Its totient is φ = 1034222112.

The previous prime is 2163756113. The next prime is 2163756143. The reversal of 2163756142 is 2416573612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163756143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69148 + ... + 95440.

It is an arithmetic number, because the mean of its divisors is an integer number (211798170).

Almost surely, 2^2163756142 is an apocalyptic number.

2163756142 is a deficient number, since it is larger than the sum of its proper divisors (1225014578).

2163756142 is a wasteful number, since it uses less digits than its factorization.

2163756142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28107.

The product of its digits is 60480, while the sum is 37.

The square root of 2163756142 is about 46516.1922560306. The cubic root of 2163756142 is about 1293.4096729452.

The spelling of 2163756142 in words is "two billion, one hundred sixty-three million, seven hundred fifty-six thousand, one hundred forty-two".