23653521140 has 48 divisors (see below), whose sum is σ = 52035782400. Its totient is φ = 9019500672.

The previous prime is 23653521139. The next prime is 23653521167. The reversal of 23653521140 is 4112535632.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 23653521097 and 23653521106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212294 + ... + 303933.

It is an arithmetic number, because the mean of its divisors is an integer number (1084078800).

Almost surely, 2^23653521140 is an apocalyptic number.

23653521140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23653521140 is an abundant number, since it is smaller than the sum of its proper divisors (28382261260).

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

23653521140 is a wasteful number, since it uses less digits than its factorization.

23653521140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516344 (or 516342 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 23653521140 in words is "twenty-three billion, six hundred fifty-three million, five hundred twenty-one thousand, one hundred forty".