190423156824 has 128 divisors (see below), whose sum is σ = 552187584000. Its totient is φ = 60688628352.

The previous prime is 190423156757. The next prime is 190423156867. The reversal of 190423156824 is 428651324091.

190423156824 is a `hidden beast` number, since 19 + 0 + 42 + 31 + 568 + 2 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 190423156824.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13997994 + ... + 14011590.

It is an arithmetic number, because the mean of its divisors is an integer number (4313965500).

Almost surely, 2^190423156824 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190423156824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276093792000).

190423156824 is an abundant number, since it is smaller than the sum of its proper divisors (361764427176).

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

190423156824 is a wasteful number, since it uses less digits than its factorization.

190423156824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16454 (or 16444 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 190423156824 in words is "one hundred ninety billion, four hundred twenty-three million, one hundred fifty-six thousand, eight hundred twenty-four".