191028930092 has 48 divisors (see below), whose sum is σ = 448851201792. Its totient is φ = 68701711680.

The previous prime is 191028930089. The next prime is 191028930139. The reversal of 191028930092 is 290039820191.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23850758 + ... + 23858765.

It is an arithmetic number, because the mean of its divisors is an integer number (9351066704).

Almost surely, 2^191028930092 is an apocalyptic number.

It is an amenable number.

191028930092 is an abundant number, since it is smaller than the sum of its proper divisors (257822271700).

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

191028930092 is a wasteful number, since it uses less digits than its factorization.

191028930092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47709558 (or 47709556 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 44.

The spelling of 191028930092 in words is "one hundred ninety-one billion, twenty-eight million, nine hundred thirty thousand, ninety-two".