23628787915 has 16 divisors (see below), whose sum is σ = 30541787136. Its totient is φ = 17497893600.

The previous prime is 23628787909. The next prime is 23628787933. The reversal of 23628787915 is 51978782632.

It is a happy number.

It is not a de Polignac number, because 23628787915 - 2¹⁵ = 23628755147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23628787915.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3310431 + ... + 3317560.

It is an arithmetic number, because the mean of its divisors is an integer number (1908861696).

Almost surely, 2^23628787915 is an apocalyptic number.

23628787915 is a deficient number, since it is larger than the sum of its proper divisors (6912999221).

23628787915 is a wasteful number, since it uses less digits than its factorization.

23628787915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6628050.

The product of its digits is 10160640, while the sum is 58.

The spelling of 23628787915 in words is "twenty-three billion, six hundred twenty-eight million, seven hundred eighty-seven thousand, nine hundred fifteen".