2391634688 has 18 divisors (see below), whose sum is σ = 4773927564. Its totient is φ = 1195817216.

The previous prime is 2391634649. The next prime is 2391634711. The reversal of 2391634688 is 8864361932.

It is a happy number.

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 as a sum of consecutive naturals, namely, 4670906 + ... + 4671417.

It is an arithmetic number, because the mean of its divisors is an integer number (265218198).

Almost surely, 2^2391634688 is an apocalyptic number.

It is an amenable number.

2391634688 is a deficient number, since it is larger than the sum of its proper divisors (2382292876).

2391634688 is an frugal number, since it uses more digits than its factorization.

2391634688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9342339 (or 9342325 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 50.

The square root of 2391634688 is about 48904.3422202978. The cubic root of 2391634688 is about 1337.3085294725.

The spelling of 2391634688 in words is "two billion, three hundred ninety-one million, six hundred thirty-four thousand, six hundred eighty-eight".