19374748279 has 2 divisors, whose sum is σ = 19374748280. Its totient is φ = 19374748278.

The previous prime is 19374748277. The next prime is 19374748331. The reversal of 19374748279 is 97284747391.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19374748279 - 2¹ = 19374748277 is a prime.

It is a super-2 number, since 2×19374748279² (a number of 21 digits) contains 22 as substring.

Together with 19374748277, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19374748273) 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 as a sum of consecutive naturals, namely, 9687374139 + 9687374140.

It is an arithmetic number, because the mean of its divisors is an integer number (9687374140).

Almost surely, 2^19374748279 is an apocalyptic number.

19374748279 is a deficient number, since it is larger than the sum of its proper divisors (1).

19374748279 is an equidigital number, since it uses as much as digits as its factorization.

19374748279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21337344, while the sum is 61.

The spelling of 19374748279 in words is "nineteen billion, three hundred seventy-four million, seven hundred forty-eight thousand, two hundred seventy-nine".