34253991581 has 2 divisors, whose sum is σ = 34253991582. Its totient is φ = 34253991580.

The previous prime is 34253991547. The next prime is 34253991593. The reversal of 34253991581 is 18519935243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29477799481 + 4776192100 = 171691^2 + 69110^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34253991581 is a prime.

It is a super-2 number, since 2×34253991581² (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 (34253991281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17126995790 + 17126995791.

It is an arithmetic number, because the mean of its divisors is an integer number (17126995791).

Almost surely, 2^34253991581 is an apocalyptic number.

It is an amenable number.

34253991581 is a deficient number, since it is larger than the sum of its proper divisors (1).

34253991581 is an equidigital number, since it uses as much as digits as its factorization.

34253991581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1166400, while the sum is 50.

The spelling of 34253991581 in words is "thirty-four billion, two hundred fifty-three million, nine hundred ninety-one thousand, five hundred eighty-one".