34999453781 has 2 divisors, whose sum is σ = 34999453782. Its totient is φ = 34999453780.

The previous prime is 34999453759. The next prime is 34999453789. The reversal of 34999453781 is 18735499943.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31981599556 + 3017854225 = 178834^2 + 54935^2 .

It is a cyclic number.

It is not a de Polignac number, because 34999453781 - 2²² = 34995259477 is a prime.

It is a super-2 number, since 2×34999453781² (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 (34999453789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17499726890 + 17499726891.

It is an arithmetic number, because the mean of its divisors is an integer number (17499726891).

Almost surely, 2^34999453781 is an apocalyptic number.

It is an amenable number.

34999453781 is a deficient number, since it is larger than the sum of its proper divisors (1).

34999453781 is an equidigital number, since it uses as much as digits as its factorization.

34999453781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29393280, while the sum is 62.

The spelling of 34999453781 in words is "thirty-four billion, nine hundred ninety-nine million, four hundred fifty-three thousand, seven hundred eighty-one".