33454613389 has 2 divisors, whose sum is σ = 33454613390. Its totient is φ = 33454613388.

The previous prime is 33454613371. The next prime is 33454613399. The reversal of 33454613389 is 98331645433.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24982331364 + 8472282025 = 158058^2 + 92045^2 .

It is a cyclic number.

It is not a de Polignac number, because 33454613389 - 2²³ = 33446224781 is a prime.

It is a super-2 number, since 2×33454613389² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33454613369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16727306694 + 16727306695.

It is an arithmetic number, because the mean of its divisors is an integer number (16727306695).

Almost surely, 2^33454613389 is an apocalyptic number.

It is an amenable number.

33454613389 is a deficient number, since it is larger than the sum of its proper divisors (1).

33454613389 is an equidigital number, since it uses as much as digits as its factorization.

33454613389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2799360, while the sum is 49.

The spelling of 33454613389 in words is "thirty-three billion, four hundred fifty-four million, six hundred thirteen thousand, three hundred eighty-nine".