191887483272 has 256 divisors, whose sum is σ = 533870611200. Its totient is φ = 57200640000.

The previous prime is 191887483241. The next prime is 191887483321. The reversal of 191887483272 is 272384788191.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 252151372 + ... + 252152132.

It is an arithmetic number, because the mean of its divisors is an integer number (2085432075).

Almost surely, 2^191887483272 is an apocalyptic number.

191887483272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 191887483272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266935305600).

191887483272 is an abundant number, since it is smaller than the sum of its proper divisors (341983127928).

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

191887483272 is a wasteful number, since it uses less digits than its factorization.

191887483272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128 (or 1124 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 60.

The spelling of 191887483272 in words is "one hundred ninety-one billion, eight hundred eighty-seven million, four hundred eighty-three thousand, two hundred seventy-two".