19248913643 has 8 divisors (see below), whose sum is σ = 19376806176. Its totient is φ = 19121444800.

The previous prime is 19248913637. The next prime is 19248913687. The reversal of 19248913643 is 34631984291.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19248913643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19248913591 and 19248913600.

It is not an unprimeable number, because it can be changed into a prime (19248918643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14498 + ... + 196743.

It is an arithmetic number, because the mean of its divisors is an integer number (2422100772).

Almost surely, 2^19248913643 is an apocalyptic number.

19248913643 is a deficient number, since it is larger than the sum of its proper divisors (127892533).

19248913643 is a wasteful number, since it uses less digits than its factorization.

19248913643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211845.

The product of its digits is 1119744, while the sum is 50.

The spelling of 19248913643 in words is "nineteen billion, two hundred forty-eight million, nine hundred thirteen thousand, six hundred forty-three".