2642697239 has 16 divisors (see below), whose sum is σ = 3364710720. Its totient is φ = 2018822400.

The previous prime is 2642697229. The next prime is 2642697241. The reversal of 2642697239 is 9327962462.

It is a happy number.

It is not a de Polignac number, because 2642697239 - 2²⁸ = 2374261783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2642697229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 498062 + ... + 503339.

It is an arithmetic number, because the mean of its divisors is an integer number (210294420).

Almost surely, 2^2642697239 is an apocalyptic number.

2642697239 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2642697239 is a deficient number, since it is larger than the sum of its proper divisors (722013481).

2642697239 is a wasteful number, since it uses less digits than its factorization.

2642697239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001450.

The product of its digits is 1959552, while the sum is 50.

The square root of 2642697239 is about 51407.1710853651. The cubic root of 2642697239 is about 1382.5551692072. Note that the first 3 decimals are identical.

The spelling of 2642697239 in words is "two billion, six hundred forty-two million, six hundred ninety-seven thousand, two hundred thirty-nine".