19481228452 has 12 divisors (see below), whose sum is σ = 38962456960. Its totient is φ = 8349097896.

The previous prime is 19481228443. The next prime is 19481228483. The reversal of 19481228452 is 25482218491.

It is a happy number.

19481228452 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347879052 + ... + 347879107.

Almost surely, 2^19481228452 is an apocalyptic number.

It is an amenable number.

19481228452 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

19481228452 is a wasteful number, since it uses less digits than its factorization.

19481228452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695758170 (or 695758168 counting only the distinct ones).

The product of its digits is 368640, while the sum is 46.

The spelling of 19481228452 in words is "nineteen billion, four hundred eighty-one million, two hundred twenty-eight thousand, four hundred fifty-two".