19077568379 has 2 divisors, whose sum is σ = 19077568380. Its totient is φ = 19077568378.

The previous prime is 19077568331. The next prime is 19077568397. The reversal of 19077568379 is 97386577091.

Together with next prime (19077568397) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (97386577091) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19077568379 is a prime.

It is not a weakly prime, because it can be changed into another prime (19077568309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9538784189 + 9538784190.

It is an arithmetic number, because the mean of its divisors is an integer number (9538784190).

Almost surely, 2^19077568379 is an apocalyptic number.

19077568379 is a deficient number, since it is larger than the sum of its proper divisors (1).

19077568379 is an equidigital number, since it uses as much as digits as its factorization.

19077568379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20003760, while the sum is 62.

The spelling of 19077568379 in words is "nineteen billion, seventy-seven million, five hundred sixty-eight thousand, three hundred seventy-nine".