34361893981 has 2 divisors, whose sum is σ = 34361893982. Its totient is φ = 34361893980.

The previous prime is 34361893931. The next prime is 34361893987. The reversal of 34361893981 is 18939816343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32268373956 + 2093520025 = 179634^2 + 45755^2 .

It is a cyclic number.

It is not a de Polignac number, because 34361893981 - 2¹⁵ = 34361861213 is a prime.

It is a super-2 number, since 2×34361893981² (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 (34361893987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17180946990 + 17180946991.

It is an arithmetic number, because the mean of its divisors is an integer number (17180946991).

Almost surely, 2^34361893981 is an apocalyptic number.

It is an amenable number.

34361893981 is a deficient number, since it is larger than the sum of its proper divisors (1).

34361893981 is an equidigital number, since it uses as much as digits as its factorization.

34361893981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3359232, while the sum is 55.

The spelling of 34361893981 in words is "thirty-four billion, three hundred sixty-one million, eight hundred ninety-three thousand, nine hundred eighty-one".