19148624812 has 6 divisors (see below), whose sum is σ = 33510093428. Its totient is φ = 9574312404.

The previous prime is 19148624801. The next prime is 19148624827. The reversal of 19148624812 is 21842684191.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2393578098 + ... + 2393578105.

Almost surely, 2^19148624812 is an apocalyptic number.

It is an amenable number.

19148624812 is a deficient number, since it is larger than the sum of its proper divisors (14361468616).

19148624812 is a wasteful number, since it uses less digits than its factorization.

19148624812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4787156207 (or 4787156205 counting only the distinct ones).

The product of its digits is 221184, while the sum is 46.

The spelling of 19148624812 in words is "nineteen billion, one hundred forty-eight million, six hundred twenty-four thousand, eight hundred twelve".