188257069452 has 48 divisors (see below), whose sum is σ = 453552970752. Its totient is φ = 60712472640.

The previous prime is 188257069423. The next prime is 188257069453. The reversal of 188257069452 is 254960752881.

It is a junction number, because it is equal to n+sod(n) for n = 188257069392 and 188257069401.

It is not an unprimeable number, because it can be changed into a prime (188257069453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1429783 + ... + 1555889.

It is an arithmetic number, because the mean of its divisors is an integer number (9449020224).

Almost surely, 2^188257069452 is an apocalyptic number.

188257069452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

188257069452 is an abundant number, since it is smaller than the sum of its proper divisors (265295901300).

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

188257069452 is a wasteful number, since it uses less digits than its factorization.

188257069452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130158 (or 130156 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 57.

The spelling of 188257069452 in words is "one hundred eighty-eight billion, two hundred fifty-seven million, sixty-nine thousand, four hundred fifty-two".