33398981459 has 2 divisors, whose sum is σ = 33398981460. Its totient is φ = 33398981458.

The previous prime is 33398981417. The next prime is 33398981491. The reversal of 33398981459 is 95418989333.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 33398981459 - 2¹² = 33398977363 is a prime.

It is a super-2 number, since 2×33398981459² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33398981059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16699490729 + 16699490730.

It is an arithmetic number, because the mean of its divisors is an integer number (16699490730).

Almost surely, 2^33398981459 is an apocalyptic number.

33398981459 is a deficient number, since it is larger than the sum of its proper divisors (1).

33398981459 is an equidigital number, since it uses as much as digits as its factorization.

33398981459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25194240, while the sum is 62.

The spelling of 33398981459 in words is "thirty-three billion, three hundred ninety-eight million, nine hundred eighty-one thousand, four hundred fifty-nine".