3198961755919 has 2 divisors, whose sum is σ = 3198961755920. Its totient is φ = 3198961755918.

The previous prime is 3198961755911. The next prime is 3198961755953. The reversal of 3198961755919 is 9195571698913.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3198961755919 - 2³ = 3198961755911 is a prime.

It is a super-2 number, since 2×3198961755919² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3198961755911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1599480877959 + 1599480877960.

It is an arithmetic number, because the mean of its divisors is an integer number (1599480877960).

Almost surely, 2^{3198961755919} is an apocalyptic number.

3198961755919 is a deficient number, since it is larger than the sum of its proper divisors (1).

3198961755919 is an equidigital number, since it uses as much as digits as its factorization.

3198961755919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165337200, while the sum is 73.

The spelling of 3198961755919 in words is "three trillion, one hundred ninety-eight billion, nine hundred sixty-one million, seven hundred fifty-five thousand, nine hundred nineteen".