191152294452 has 72 divisors (see below), whose sum is σ = 576227223936. Its totient is φ = 52240377024.

The previous prime is 191152294447. The next prime is 191152294453. The reversal of 191152294452 is 254492251191.

191152294452 is a `hidden beast` number, since 1 + 91 + 1 + 5 + 22 + 94 + 452 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 191152294398 and 191152294407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191152294453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16484223 + ... + 16495814.

It is an arithmetic number, because the mean of its divisors is an integer number (8003155888).

Almost surely, 2^191152294452 is an apocalyptic number.

191152294452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

191152294452 is an abundant number, since it is smaller than the sum of its proper divisors (385074929484).

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

191152294452 is a wasteful number, since it uses less digits than its factorization.

191152294452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32980077 (or 32980072 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The spelling of 191152294452 in words is "one hundred ninety-one billion, one hundred fifty-two million, two hundred ninety-four thousand, four hundred fifty-two".