191700828348 has 24 divisors (see below), whose sum is σ = 448469833728. Its totient is φ = 63733433136.

The previous prime is 191700828289. The next prime is 191700828379. The reversal of 191700828348 is 843828007191.

It is a self number, because there is not a number n which added to its sum of digits gives 191700828348.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20850586 + ... + 20859777.

It is an arithmetic number, because the mean of its divisors is an integer number (18686243072).

Almost surely, 2^191700828348 is an apocalyptic number.

It is an amenable number.

191700828348 is an abundant number, since it is smaller than the sum of its proper divisors (256769005380).

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

191700828348 is a wasteful number, since it uses less digits than its factorization.

191700828348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41710753 (or 41710751 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 51.

The spelling of 191700828348 in words is "one hundred ninety-one billion, seven hundred million, eight hundred twenty-eight thousand, three hundred forty-eight".