19481396912 has 40 divisors (see below), whose sum is σ = 38925722880. Its totient is φ = 9440701760.

The previous prime is 19481396897. The next prime is 19481396927. The reversal of 19481396912 is 21969318491.

It is an interprime number because it is at equal distance from previous prime (19481396897) and next prime (19481396927).

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, 78308 + ... + 212355.

It is an arithmetic number, because the mean of its divisors is an integer number (973143072).

Almost surely, 2^19481396912 is an apocalyptic number.

It is an amenable number.

19481396912 is a deficient number, since it is larger than the sum of its proper divisors (19444325968).

19481396912 is a wasteful number, since it uses less digits than its factorization.

19481396912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290801 (or 290795 counting only the distinct ones).

The product of its digits is 839808, while the sum is 53.

The spelling of 19481396912 in words is "nineteen billion, four hundred eighty-one million, three hundred ninety-six thousand, nine hundred twelve".