19231462817 has 48 divisors (see below), whose sum is σ = 23161531392. Its totient is φ = 15914545920.

The previous prime is 19231462813. The next prime is 19231462819. The reversal of 19231462817 is 71826413291.

It is not a de Polignac number, because 19231462817 - 2² = 19231462813 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19231462813) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67955558 + ... + 67955840.

It is an arithmetic number, because the mean of its divisors is an integer number (482531904).

Almost surely, 2^19231462817 is an apocalyptic number.

It is an amenable number.

19231462817 is a deficient number, since it is larger than the sum of its proper divisors (3930068575).

19231462817 is a wasteful number, since it uses less digits than its factorization.

19231462817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678 (or 671 counting only the distinct ones).

The product of its digits is 145152, while the sum is 44.

The spelling of 19231462817 in words is "nineteen billion, two hundred thirty-one million, four hundred sixty-two thousand, eight hundred seventeen".