188472982464 has 840 divisors, whose sum is σ = 650494699008. Its totient is φ = 53613342720.

The previous prime is 188472982447. The next prime is 188472982507. The reversal of 188472982464 is 464289274881.

188472982464 is a `hidden beast` number, since 1 + 8 + 84 + 7 + 2 + 98 + 2 + 464 = 666.

It is a super-2 number, since 2×188472982464² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1484039169 + ... + 1484039295.

Almost surely, 2^188472982464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 188472982464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325247349504).

188472982464 is an abundant number, since it is smaller than the sum of its proper divisors (462021716544).

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

188472982464 is a wasteful number, since it uses less digits than its factorization.

188472982464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263 (or 225 counting only the distinct ones).

The product of its digits is 49545216, while the sum is 63.

The spelling of 188472982464 in words is "one hundred eighty-eight billion, four hundred seventy-two million, nine hundred eighty-two thousand, four hundred sixty-four".