34531138685 has 4 divisors (see below), whose sum is σ = 41437366428. Its totient is φ = 27624910944.

The previous prime is 34531138679. The next prime is 34531138687. The reversal of 34531138685 is 58683113543.

34531138685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58683113543 = 281 ⋅208836703.

It can be written as a sum of positive squares in 2 ways, for example, as 17281205764 + 17249932921 = 131458^2 + 131339^2 .

It is a cyclic number.

It is not a de Polignac number, because 34531138685 - 2¹⁰ = 34531137661 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34531138687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3453113864 + ... + 3453113873.

It is an arithmetic number, because the mean of its divisors is an integer number (10359341607).

Almost surely, 2^34531138685 is an apocalyptic number.

It is an amenable number.

34531138685 is a deficient number, since it is larger than the sum of its proper divisors (6906227743).

34531138685 is an equidigital number, since it uses as much as digits as its factorization.

34531138685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6906227742.

The product of its digits is 1036800, while the sum is 47.

The spelling of 34531138685 in words is "thirty-four billion, five hundred thirty-one million, one hundred thirty-eight thousand, six hundred eighty-five".