191394892183452 has 96 divisors (see below), whose sum is σ = 447530111508480. Its totient is φ = 63663928473600.

The previous prime is 191394892183357. The next prime is 191394892183553. The reversal of 191394892183452 is 254381298493191.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54234878424 + ... + 54234881952.

It is an arithmetic number, because the mean of its divisors is an integer number (4661771994880).

Almost surely, 2^{191394892183452} is an apocalyptic number.

191394892183452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

191394892183452 is an abundant number, since it is smaller than the sum of its proper divisors (256135219325028).

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

191394892183452 is a wasteful number, since it uses less digits than its factorization.

191394892183452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8523 (or 8521 counting only the distinct ones).

The product of its digits is 134369280, while the sum is 69.

The spelling of 191394892183452 in words is "one hundred ninety-one trillion, three hundred ninety-four billion, eight hundred ninety-two million, one hundred eighty-three thousand, four hundred fifty-two".