1948398693419 has 2 divisors, whose sum is σ = 1948398693420. Its totient is φ = 1948398693418.

The previous prime is 1948398693349. The next prime is 1948398693421. The reversal of 1948398693419 is 9143968938491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1948398693419 - 2¹² = 1948398689323 is a prime.

It is a super-2 number, since 2×1948398693419² (a number of 25 digits) contains 22 as substring.

Together with 1948398693421, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1948398693469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 974199346709 + 974199346710.

It is an arithmetic number, because the mean of its divisors is an integer number (974199346710).

Almost surely, 2^{1948398693419} is an apocalyptic number.

1948398693419 is a deficient number, since it is larger than the sum of its proper divisors (1).

1948398693419 is an equidigital number, since it uses as much as digits as its factorization.

1948398693419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362797056, while the sum is 74.

The spelling of 1948398693419 in words is "one trillion, nine hundred forty-eight billion, three hundred ninety-eight million, six hundred ninety-three thousand, four hundred nineteen".