23617624642 has 4 divisors (see below), whose sum is σ = 35426436966. Its totient is φ = 11808812320.

The previous prime is 23617624631. The next prime is 23617624651. The reversal of 23617624642 is 24642671632.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20825664721 + 2791959921 = 144311^2 + 52839^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5904406159 + ... + 5904406162.

Almost surely, 2^23617624642 is an apocalyptic number.

23617624642 is a deficient number, since it is larger than the sum of its proper divisors (11808812324).

23617624642 is a wasteful number, since it uses less digits than its factorization.

23617624642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11808812323.

The product of its digits is 580608, while the sum is 43.

The spelling of 23617624642 in words is "twenty-three billion, six hundred seventeen million, six hundred twenty-four thousand, six hundred forty-two".