23639495693 has 16 divisors (see below), whose sum is σ = 26704472640. Its totient is φ = 20909584080.

The previous prime is 23639495689. The next prime is 23639495729. The reversal of 23639495693 is 39659493632.

It is not a de Polignac number, because 23639495693 - 2² = 23639495689 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23639492693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190763 + ... + 289256.

It is an arithmetic number, because the mean of its divisors is an integer number (1669029540).

Almost surely, 2^23639495693 is an apocalyptic number.

It is an amenable number.

23639495693 is a deficient number, since it is larger than the sum of its proper divisors (3064976947).

23639495693 is an equidigital number, since it uses as much as digits as its factorization.

23639495693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480089 (or 480067 counting only the distinct ones).

The product of its digits is 28343520, while the sum is 59.

The spelling of 23639495693 in words is "twenty-three billion, six hundred thirty-nine million, four hundred ninety-five thousand, six hundred ninety-three".