2642632139 has 8 divisors (see below), whose sum is σ = 3020717568. Its totient is φ = 2264688360.

The previous prime is 2642632117. The next prime is 2642632147. The reversal of 2642632139 is 9312362462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2642632139 - 2⁸ = 2642631883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2642632159) 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, 8144 + ... + 73154.

It is an arithmetic number, because the mean of its divisors is an integer number (377589696).

Almost surely, 2^2642632139 is an apocalyptic number.

2642632139 is a deficient number, since it is larger than the sum of its proper divisors (378085429).

2642632139 is an equidigital number, since it uses as much as digits as its factorization.

2642632139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70825.

The product of its digits is 93312, while the sum is 38.

The square root of 2642632139 is about 51406.5379013215. The cubic root of 2642632139 is about 1382.5438165281.

The spelling of 2642632139 in words is "two billion, six hundred forty-two million, six hundred thirty-two thousand, one hundred thirty-nine".