19741831146 has 12 divisors (see below), whose sum is σ = 42773967522. Its totient is φ = 6580610376.

The previous prime is 19741831097. The next prime is 19741831169. The reversal of 19741831146 is 64113814791.

19741831146 is a `hidden beast` number, since 1 + 97 + 418 + 3 + 1 + 146 = 666.

It can be written as a sum of positive squares in only one way, i.e., 17040430521 + 2701400625 = 130539^2 + 51975^2 .

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 5 ways as a sum of consecutive naturals, for example, 548384181 + ... + 548384216.

Almost surely, 2^19741831146 is an apocalyptic number.

19741831146 is an abundant number, since it is smaller than the sum of its proper divisors (23032136376).

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

19741831146 is a wasteful number, since it uses less digits than its factorization.

19741831146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096768405 (or 1096768402 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The spelling of 19741831146 in words is "nineteen billion, seven hundred forty-one million, eight hundred thirty-one thousand, one hundred forty-six".