190457489520 has 120 divisors (see below), whose sum is σ = 645829887456. Its totient is φ = 50295550464.

The previous prime is 190457489501. The next prime is 190457489561. The reversal of 190457489520 is 25984754091.

It is a happy number.

190457489520 is a `hidden beast` number, since 1 + 9 + 0 + 45 + 74 + 8 + 9 + 520 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

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, 1209939 + ... + 1358258.

Almost surely, 2^190457489520 is an apocalyptic number.

190457489520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190457489520 is an abundant number, since it is smaller than the sum of its proper divisors (455372397936).

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

190457489520 is a wasteful number, since it uses less digits than its factorization.

190457489520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2568319 (or 2568310 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The spelling of 190457489520 in words is "one hundred ninety billion, four hundred fifty-seven million, four hundred eighty-nine thousand, five hundred twenty".