19432582128 has 80 divisors (see below), whose sum is σ = 57578060800. Its totient is φ = 6268570560.

The previous prime is 19432582061. The next prime is 19432582163. The reversal of 19432582128 is 82128523491.

19432582128 is a `hidden beast` number, since 1 + 9 + 43 + 2 + 582 + 1 + 28 = 666.

It is a super-2 number, since 2×19432582128² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 712138 + ... + 738921.

It is an arithmetic number, because the mean of its divisors is an integer number (719725760).

Almost surely, 2^19432582128 is an apocalyptic number.

19432582128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

19432582128 is an abundant number, since it is smaller than the sum of its proper divisors (38145478672).

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

19432582128 is a wasteful number, since it uses less digits than its factorization.

19432582128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451107 (or 1451095 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The spelling of 19432582128 in words is "nineteen billion, four hundred thirty-two million, five hundred eighty-two thousand, one hundred twenty-eight".