33198988913 has 2 divisors, whose sum is σ = 33198988914. Its totient is φ = 33198988912.

The previous prime is 33198988891. The next prime is 33198988957. The reversal of 33198988913 is 31988989133.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24065937424 + 9133051489 = 155132^2 + 95567^2 .

It is a cyclic number.

It is not a de Polignac number, because 33198988913 - 2²⁰ = 33197940337 is a prime.

It is a super-2 number, since 2×33198988913² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33198988513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16599494456 + 16599494457.

It is an arithmetic number, because the mean of its divisors is an integer number (16599494457).

Almost surely, 2^33198988913 is an apocalyptic number.

It is an amenable number.

33198988913 is a deficient number, since it is larger than the sum of its proper divisors (1).

33198988913 is an equidigital number, since it uses as much as digits as its factorization.

33198988913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10077696, while the sum is 62.

The spelling of 33198988913 in words is "thirty-three billion, one hundred ninety-eight million, nine hundred eighty-eight thousand, nine hundred thirteen".