191385828954 has 48 divisors (see below), whose sum is σ = 455472014400. Its totient is φ = 57809904768.

The previous prime is 191385828917. The next prime is 191385829003. The reversal of 191385828954 is 459828583191.

191385828954 is a `hidden beast` number, since 1 + 91 + 385 + 82 + 8 + 95 + 4 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 191385828891 and 191385828900.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12157519 + ... + 12173250.

It is an arithmetic number, because the mean of its divisors is an integer number (9489000300).

Almost surely, 2^191385828954 is an apocalyptic number.

191385828954 is an abundant number, since it is smaller than the sum of its proper divisors (264086185446).

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

191385828954 is a wasteful number, since it uses less digits than its factorization.

191385828954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24330819 (or 24330816 counting only the distinct ones).

The product of its digits is 24883200, while the sum is 63.

The spelling of 191385828954 in words is "one hundred ninety-one billion, three hundred eighty-five million, eight hundred twenty-eight thousand, nine hundred fifty-four".