191848609488 has 40 divisors (see below), whose sum is σ = 495632215008. Its totient is φ = 63946529152.

The previous prime is 191848609471. The next prime is 191848609529. The reversal of 191848609488 is 884906848191.

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, 1091506 + ... + 1255022.

Almost surely, 2^191848609488 is an apocalyptic number.

It is an amenable number.

191848609488 is an abundant number, since it is smaller than the sum of its proper divisors (303783605520).

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

191848609488 is a wasteful number, since it uses less digits than its factorization.

191848609488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187971 (or 187965 counting only the distinct ones).

The product of its (nonzero) digits is 31850496, while the sum is 66.

The spelling of 191848609488 in words is "one hundred ninety-one billion, eight hundred forty-eight million, six hundred nine thousand, four hundred eighty-eight".