19630491044 has 24 divisors (see below), whose sum is σ = 35355613440. Its totient is φ = 9529996896.

The previous prime is 19630491017. The next prime is 19630491113. The reversal of 19630491044 is 44019403691.

It is a junction number, because it is equal to n+sod(n) for n = 19630490992 and 19630491010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67562 + ... + 209345.

It is an arithmetic number, because the mean of its divisors is an integer number (1473150560).

Almost surely, 2^19630491044 is an apocalyptic number.

It is an amenable number.

19630491044 is a deficient number, since it is larger than the sum of its proper divisors (15725122396).

19630491044 is a wasteful number, since it uses less digits than its factorization.

19630491044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277427 (or 277425 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The spelling of 19630491044 in words is "nineteen billion, six hundred thirty million, four hundred ninety-one thousand, forty-four".