2158867632 has 40 divisors (see below), whose sum is σ = 5706779584. Its totient is φ = 702886464.

The previous prime is 2158867547. The next prime is 2158867649. The reversal of 2158867632 is 2367688512.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 520918 + ... + 525045.

Almost surely, 2^2158867632 is an apocalyptic number.

It is an amenable number.

2158867632 is an abundant number, since it is smaller than the sum of its proper divisors (3547911952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2158867632 is a wasteful number, since it uses less digits than its factorization.

2158867632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046017 (or 1046011 counting only the distinct ones).

The product of its digits is 967680, while the sum is 48.

The square root of 2158867632 is about 46463.6162174233. The cubic root of 2158867632 is about 1292.4348844503.

The spelling of 2158867632 in words is "two billion, one hundred fifty-eight million, eight hundred sixty-seven thousand, six hundred thirty-two".