191425239372 has 72 divisors (see below), whose sum is σ = 457686754560. Its totient is φ = 62258542080.

The previous prime is 191425239353. The next prime is 191425239487. The reversal of 191425239372 is 273932524191.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8004529 + ... + 8028407.

It is an arithmetic number, because the mean of its divisors is an integer number (6356760480).

Almost surely, 2^191425239372 is an apocalyptic number.

191425239372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

191425239372 is an abundant number, since it is smaller than the sum of its proper divisors (266261515188).

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

191425239372 is a wasteful number, since it uses less digits than its factorization.

191425239372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24151 (or 24052 counting only the distinct ones).

The product of its digits is 816480, while the sum is 48.

The spelling of 191425239372 in words is "one hundred ninety-one billion, four hundred twenty-five million, two hundred thirty-nine thousand, three hundred seventy-two".