19336928457 has 24 divisors (see below), whose sum is σ = 32718516192. Its totient is φ = 10045156800.

The previous prime is 19336928453. The next prime is 19336928503. The reversal of 19336928457 is 75482963391.

It is not a de Polignac number, because 19336928457 - 2² = 19336928453 is a prime.

It is a super-2 number, since 2×19336928457² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 19336928397 and 19336928406.

It is not an unprimeable number, because it can be changed into a prime (19336928453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5977644 + ... + 5980877.

It is an arithmetic number, because the mean of its divisors is an integer number (1363271508).

Almost surely, 2^19336928457 is an apocalyptic number.

It is an amenable number.

19336928457 is a deficient number, since it is larger than the sum of its proper divisors (13381587735).

19336928457 is a wasteful number, since it uses less digits than its factorization.

19336928457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11958549 (or 11958542 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 57.

The spelling of 19336928457 in words is "nineteen billion, three hundred thirty-six million, nine hundred twenty-eight thousand, four hundred fifty-seven".