191156628192 has 192 divisors, whose sum is σ = 532823961600. Its totient is φ = 59838912000.

The previous prime is 191156628161. The next prime is 191156628193. The reversal of 191156628192 is 291826651191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191156628193) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109419063 + ... + 109420809.

It is an arithmetic number, because the mean of its divisors is an integer number (2775124800).

Almost surely, 2^191156628192 is an apocalyptic number.

191156628192 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 191156628192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266411980800).

191156628192 is an abundant number, since it is smaller than the sum of its proper divisors (341667333408).

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

191156628192 is a wasteful number, since it uses less digits than its factorization.

191156628192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2269 (or 2261 counting only the distinct ones).

The product of its digits is 466560, while the sum is 51.

The spelling of 191156628192 in words is "one hundred ninety-one billion, one hundred fifty-six million, six hundred twenty-eight thousand, one hundred ninety-two".