188373215452 has 12 divisors (see below), whose sum is σ = 329656269600. Its totient is φ = 94185709856.

The previous prime is 188373215357. The next prime is 188373215453. The reversal of 188373215452 is 254512373881.

It is a super-2 number, since 2×188373215452² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 188373215396 and 188373215405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188373215453) 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 3 ways as a sum of consecutive naturals, for example, 527424 + ... + 809272.

It is an arithmetic number, because the mean of its divisors is an integer number (27471355800).

Almost surely, 2^188373215452 is an apocalyptic number.

It is an amenable number.

188373215452 is a deficient number, since it is larger than the sum of its proper divisors (141283054148).

188373215452 is a wasteful number, since it uses less digits than its factorization.

188373215452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448940 (or 448938 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 49.

The spelling of 188373215452 in words is "one hundred eighty-eight billion, three hundred seventy-three million, two hundred fifteen thousand, four hundred fifty-two".