2142164986 has 16 divisors (see below), whose sum is σ = 3461673600. Its totient is φ = 988333488.

The previous prime is 2142164963. The next prime is 2142164993. The reversal of 2142164986 is 6894612412.

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, 66675 + ... + 93433.

It is an arithmetic number, because the mean of its divisors is an integer number (216354600).

Almost surely, 2^2142164986 is an apocalyptic number.

2142164986 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2142164986 is a deficient number, since it is larger than the sum of its proper divisors (1319508614).

2142164986 is a wasteful number, since it uses less digits than its factorization.

2142164986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29853.

The product of its digits is 165888, while the sum is 43.

The square root of 2142164986 is about 46283.5282362959. The cubic root of 2142164986 is about 1289.0931643226.

The spelling of 2142164986 in words is "two billion, one hundred forty-two million, one hundred sixty-four thousand, nine hundred eighty-six".