189724150494 has 48 divisors (see below), whose sum is σ = 428303257200. Its totient is φ = 60621337728.

The previous prime is 189724150489. The next prime is 189724150501. The reversal of 189724150494 is 494051427981.

189724150494 is a `hidden beast` number, since 1 + 8 + 9 + 7 + 2 + 41 + 504 + 94 = 666.

189724150494 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 189724150494.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1234839 + ... + 1379954.

It is an arithmetic number, because the mean of its divisors is an integer number (8922984525).

Almost surely, 2^189724150494 is an apocalyptic number.

189724150494 is an abundant number, since it is smaller than the sum of its proper divisors (238579106706).

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

189724150494 is a wasteful number, since it uses less digits than its factorization.

189724150494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2614969 (or 2614966 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 189724150494 in words is "one hundred eighty-nine billion, seven hundred twenty-four million, one hundred fifty thousand, four hundred ninety-four".