19304452651 has 16 divisors (see below), whose sum is σ = 21248689248. Its totient is φ = 17536907520.

The previous prime is 19304452639. The next prime is 19304452681. The reversal of 19304452651 is 15625440391.

It is a de Polignac number, because none of the positive numbers 2^k-19304452651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19304452681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2201091 + ... + 2209843.

It is an arithmetic number, because the mean of its divisors is an integer number (1328043078).

Almost surely, 2^19304452651 is an apocalyptic number.

19304452651 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

19304452651 is a deficient number, since it is larger than the sum of its proper divisors (1944236597).

19304452651 is an equidigital number, since it uses as much as digits as its factorization.

19304452651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10443 (or 10421 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 19304452651 in words is "nineteen billion, three hundred four million, four hundred fifty-two thousand, six hundred fifty-one".