23636136690 has 32 divisors (see below), whose sum is σ = 63029698560. Its totient is φ = 6302969712.

The previous prime is 23636136649. The next prime is 23636136701. The reversal of 23636136690 is 9663163632.

23636136690 is a `hidden beast` number, since 2 + 3 + 636 + 1 + 3 + 6 + 6 + 9 + 0 = 666.

It is a super-2 number, since 2×23636136690² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 43770354 + ... + 43770893.

It is an arithmetic number, because the mean of its divisors is an integer number (1969678080).

Almost surely, 2^23636136690 is an apocalyptic number.

23636136690 is an abundant number, since it is smaller than the sum of its proper divisors (39393561870).

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

23636136690 is a wasteful number, since it uses less digits than its factorization.

23636136690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87541263 (or 87541257 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 45.

The spelling of 23636136690 in words is "twenty-three billion, six hundred thirty-six million, one hundred thirty-six thousand, six hundred ninety".