190421168314824 has 128 divisors (see below), whose sum is σ = 531297056908800. Its totient is φ = 63191818958400.

The previous prime is 190421168314753. The next prime is 190421168314829. The reversal of 190421168314824 is 428413861124091.

190421168314824 is a `hidden beast` number, since 1 + 9 + 0 + 42 + 116 + 8 + 3 + 1 + 482 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (190421168314829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1858604799 + ... + 1858707249.

It is an arithmetic number, because the mean of its divisors is an integer number (4150758257100).

Almost surely, 2^{190421168314824} 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 190421168314824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265648528454400).

190421168314824 is an abundant number, since it is smaller than the sum of its proper divisors (340875888593976).

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

190421168314824 is a wasteful number, since it uses less digits than its factorization.

190421168314824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140600 (or 140590 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 54.

The spelling of 190421168314824 in words is "one hundred ninety trillion, four hundred twenty-one billion, one hundred sixty-eight million, three hundred fourteen thousand, eight hundred twenty-four".