23638678623 has 48 divisors (see below), whose sum is σ = 40247940096. Its totient is φ = 13089355200.

The previous prime is 23638678579. The next prime is 23638678649. The reversal of 23638678623 is 32687683632.

It is a happy number.

23638678623 is a `hidden beast` number, since 2 + 3 + 6 + 3 + 8 + 6 + 7 + 8 + 623 = 666.

It is not a de Polignac number, because 23638678623 - 2¹⁶ = 23638613087 is a prime.

It is a super-2 number, since 2×23638678623² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23638678623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23638678663) by changing a digit.

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 in 47 ways as a sum of consecutive naturals, for example, 259540 + ... + 338582.

It is an arithmetic number, because the mean of its divisors is an integer number (838498752).

Almost surely, 2^23638678623 is an apocalyptic number.

23638678623 is a deficient number, since it is larger than the sum of its proper divisors (16609261473).

23638678623 is a wasteful number, since it uses less digits than its factorization.

23638678623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79204 (or 79201 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 54.

The spelling of 23638678623 in words is "twenty-three billion, six hundred thirty-eight million, six hundred seventy-eight thousand, six hundred twenty-three".