19098450401 has 2 divisors, whose sum is σ = 19098450402. Its totient is φ = 19098450400.

The previous prime is 19098450379. The next prime is 19098450409. The reversal of 19098450401 is 10405489091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16628360401 + 2470090000 = 128951^2 + 49700^2 .

It is an emirp because it is prime and its reverse (10405489091) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19098450401 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (19098450409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9549225200 + 9549225201.

It is an arithmetic number, because the mean of its divisors is an integer number (9549225201).

Almost surely, 2^19098450401 is an apocalyptic number.

It is an amenable number.

19098450401 is a deficient number, since it is larger than the sum of its proper divisors (1).

19098450401 is an equidigital number, since it uses as much as digits as its factorization.

19098450401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 41.

The spelling of 19098450401 in words is "nineteen billion, ninety-eight million, four hundred fifty thousand, four hundred one".