188311049472 has 144 divisors (see below), whose sum is σ = 616839628160. Its totient is φ = 49664434176.

The previous prime is 188311049471. The next prime is 188311049491. The reversal of 188311049472 is 274940113881.

It is a super-2 number, since 2×188311049472² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188311049471) 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, 1277347 + ... + 1417122.

Almost surely, 2^188311049472 is an apocalyptic number.

188311049472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

188311049472 is an abundant number, since it is smaller than the sum of its proper divisors (428528578688).

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

188311049472 is a wasteful number, since it uses less digits than its factorization.

188311049472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2694508 (or 2694494 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 48.

The spelling of 188311049472 in words is "one hundred eighty-eight billion, three hundred eleven million, forty-nine thousand, four hundred seventy-two".