191042122548 has 24 divisors (see below), whose sum is σ = 446506674880. Its totient is φ = 63574747200.

The previous prime is 191042122529. The next prime is 191042122559. The reversal of 191042122548 is 845221240191.

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, 13237528 + ... + 13251951.

Almost surely, 2^191042122548 is an apocalyptic number.

It is an amenable number.

191042122548 is an abundant number, since it is smaller than the sum of its proper divisors (255464552332).

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

191042122548 is a wasteful number, since it uses less digits than its factorization.

191042122548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26490087 (or 26490085 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The spelling of 191042122548 in words is "one hundred ninety-one billion, forty-two million, one hundred twenty-two thousand, five hundred forty-eight".