3429881861 has 6 divisors (see below), whose sum is σ = 3989862630. Its totient is φ = 2939898696.

The previous prime is 3429881839. The next prime is 3429881891. The reversal of 3429881861 is 1681889243.

3429881861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2407864900 + 1022016961 = 49070^2 + 31969^2 .

It is not a de Polignac number, because 3429881861 - 2²² = 3425687557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3429881821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34998746 + ... + 34998843.

It is an arithmetic number, because the mean of its divisors is an integer number (664977105).

Almost surely, 2^3429881861 is an apocalyptic number.

It is an amenable number.

3429881861 is a deficient number, since it is larger than the sum of its proper divisors (559980769).

3429881861 is an equidigital number, since it uses as much as digits as its factorization.

3429881861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69997603 (or 69997596 counting only the distinct ones).

The product of its digits is 663552, while the sum is 50.

The square root of 3429881861 is about 58565.1932550384. The cubic root of 3429881861 is about 1508.0869683501.

The spelling of 3429881861 in words is "three billion, four hundred twenty-nine million, eight hundred eighty-one thousand, eight hundred sixty-one".