19148606428 has 12 divisors (see below), whose sum is σ = 38297212912. Its totient is φ = 8206545600.

The previous prime is 19148606381. The next prime is 19148606431. The reversal of 19148606428 is 82460684191.

It is a happy number.

19148606428 is an admirable number.

It is a congruent 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, 341939373 + ... + 341939428.

Almost surely, 2^19148606428 is an apocalyptic number.

It is an amenable number.

19148606428 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.

19148606428 is a wasteful number, since it uses less digits than its factorization.

19148606428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683878812 (or 683878810 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 49.

The spelling of 19148606428 in words is "nineteen billion, one hundred forty-eight million, six hundred six thousand, four hundred twenty-eight".