2142658899 has 80 divisors (see below), whose sum is σ = 3521351680. Its totient is φ = 1293304320.

The previous prime is 2142658883. The next prime is 2142658907. The reversal of 2142658899 is 9988562412.

It is a happy number.

2142658899 is a `hidden beast` number, since 214 + 265 + 88 + 99 = 666.

It is not a de Polignac number, because 2142658899 - 2⁴ = 2142658883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2142658099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4627542 + ... + 4628004.

It is an arithmetic number, because the mean of its divisors is an integer number (44016896).

Almost surely, 2^2142658899 is an apocalyptic number.

2142658899 is a deficient number, since it is larger than the sum of its proper divisors (1378692781).

2142658899 is a wasteful number, since it uses less digits than its factorization.

2142658899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622 (or 613 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

The square root of 2142658899 is about 46288.8636607122. The cubic root of 2142658899 is about 1289.1922309131.

The spelling of 2142658899 in words is "two billion, one hundred forty-two million, six hundred fifty-eight thousand, eight hundred ninety-nine".