33543352091 has 2 divisors, whose sum is σ = 33543352092. Its totient is φ = 33543352090.

The previous prime is 33543352079. The next prime is 33543352123. The reversal of 33543352091 is 19025334533.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33543352091 is a prime.

It is a super-2 number, since 2×33543352091² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33543352061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16771676045 + 16771676046.

It is an arithmetic number, because the mean of its divisors is an integer number (16771676046).

Almost surely, 2^33543352091 is an apocalyptic number.

33543352091 is a deficient number, since it is larger than the sum of its proper divisors (1).

33543352091 is an equidigital number, since it uses as much as digits as its factorization.

33543352091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145800, while the sum is 38.

The spelling of 33543352091 in words is "thirty-three billion, five hundred forty-three million, three hundred fifty-two thousand, ninety-one".