19098450379 has 2 divisors, whose sum is σ = 19098450380. Its totient is φ = 19098450378.

The previous prime is 19098450367. The next prime is 19098450401. The reversal of 19098450379 is 97305489091.

It is a weak prime.

It is an emirp because it is prime and its reverse (97305489091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19098450379 - 2⁵ = 19098450347 is a prime.

It is not a weakly prime, because it can be changed into another prime (19098450359) 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, 9549225189 + 9549225190.

It is an arithmetic number, because the mean of its divisors is an integer number (9549225190).

Almost surely, 2^19098450379 is an apocalyptic number.

19098450379 is a deficient number, since it is larger than the sum of its proper divisors (1).

19098450379 is an equidigital number, since it uses as much as digits as its factorization.

19098450379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2449440, while the sum is 55.

The spelling of 19098450379 in words is "nineteen billion, ninety-eight million, four hundred fifty thousand, three hundred seventy-nine".