34441386781 has 2 divisors, whose sum is σ = 34441386782. Its totient is φ = 34441386780.

The previous prime is 34441386737. The next prime is 34441386851. The reversal of 34441386781 is 18768314443.

34441386781 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18704938756 + 15736448025 = 136766^2 + 125445^2 .

It is a cyclic number.

It is not a de Polignac number, because 34441386781 - 2⁹ = 34441386269 is a prime.

It is a super-2 number, since 2×34441386781² (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 (34441386701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17220693390 + 17220693391.

It is an arithmetic number, because the mean of its divisors is an integer number (17220693391).

Almost surely, 2^34441386781 is an apocalyptic number.

It is an amenable number.

34441386781 is a deficient number, since it is larger than the sum of its proper divisors (1).

34441386781 is an equidigital number, since it uses as much as digits as its factorization.

34441386781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1548288, while the sum is 49.

The spelling of 34441386781 in words is "thirty-four billion, four hundred forty-one million, three hundred eighty-six thousand, seven hundred eighty-one".