34531329991 has 2 divisors, whose sum is σ = 34531329992. Its totient is φ = 34531329990.

The previous prime is 34531329971. The next prime is 34531330039. The reversal of 34531329991 is 19992313543.

It is a weak prime.

It is an emirp because it is prime and its reverse (19992313543) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34531329991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34531329901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17265664995 + 17265664996.

It is an arithmetic number, because the mean of its divisors is an integer number (17265664996).

Almost surely, 2^34531329991 is an apocalyptic number.

34531329991 is a deficient number, since it is larger than the sum of its proper divisors (1).

34531329991 is an equidigital number, since it uses as much as digits as its factorization.

34531329991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 787320, while the sum is 49.

The spelling of 34531329991 in words is "thirty-four billion, five hundred thirty-one million, three hundred twenty-nine thousand, nine hundred ninety-one".