23187528747648 has 80 divisors (see below), whose sum is σ = 69005709860010. Its totient is φ = 7729176245760.

The previous prime is 23187528747611. The next prime is 23187528747707. The reversal of 23187528747648 is 84674782578132.

23187528747648 is a `hidden beast` number, since 2 + 3 + 1 + 8 + 75 + 2 + 87 + 476 + 4 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12949115886144 + 10238412861504 = 3598488^2 + 3199752^2 .

It is a super-2 number, since 2×23187528747648² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1118215363 + ... + 1118236098.

Almost surely, 2^{23187528747648} is an apocalyptic number.

It is an amenable number.

23187528747648 is an abundant number, since it is smaller than the sum of its proper divisors (45818181112362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23187528747648 is an equidigital number, since it uses as much as digits as its factorization.

23187528747648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236451487 (or 2236451466 counting only the distinct ones).

The product of its digits is 1011548160, while the sum is 72.

The spelling of 23187528747648 in words is "twenty-three trillion, one hundred eighty-seven billion, five hundred twenty-eight million, seven hundred forty-seven thousand, six hundred forty-eight".