17920053236 has 48 divisors (see below), whose sum is σ = 32600413440. Its totient is φ = 8614045440.

The previous prime is 17920053233. The next prime is 17920053323. The reversal of 17920053236 is 63235002971.

It is a super-2 number, since 2×17920053236² (a number of 21 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 17920053236.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17920053233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2510120 + ... + 2517248.

It is an arithmetic number, because the mean of its divisors is an integer number (679175280).

Almost surely, 2^17920053236 is an apocalyptic number.

It is an amenable number.

17920053236 is a deficient number, since it is larger than the sum of its proper divisors (14680360204).

17920053236 is a wasteful number, since it uses less digits than its factorization.

17920053236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7424 (or 7422 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 38.

The spelling of 17920053236 in words is "seventeen billion, nine hundred twenty million, fifty-three thousand, two hundred thirty-six".