19269791948 has 12 divisors (see below), whose sum is σ = 36787784712. Its totient is φ = 8758996320.

The previous prime is 19269791939. The next prime is 19269791999. The reversal of 19269791948 is 84919796291.

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, 218974865 + ... + 218974952.

It is an arithmetic number, because the mean of its divisors is an integer number (3065648726).

Almost surely, 2^19269791948 is an apocalyptic number.

It is an amenable number.

19269791948 is a deficient number, since it is larger than the sum of its proper divisors (17517992764).

19269791948 is a wasteful number, since it uses less digits than its factorization.

19269791948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437949832 (or 437949830 counting only the distinct ones).

The product of its digits is 17635968, while the sum is 65.

The spelling of 19269791948 in words is "nineteen billion, two hundred sixty-nine million, seven hundred ninety-one thousand, nine hundred forty-eight".