6409861071 has 16 divisors (see below), whose sum is σ = 9085376640. Its totient is φ = 4008247200.

The previous prime is 6409861037. The next prime is 6409861111. The reversal of 6409861071 is 1701689046.

6409861071 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6409861071 - 2¹⁴ = 6409844687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6409860071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 550945 + ... + 562458.

It is an arithmetic number, because the mean of its divisors is an integer number (567836040).

Almost surely, 2^6409861071 is an apocalyptic number.

6409861071 is a deficient number, since it is larger than the sum of its proper divisors (2675515569).

6409861071 is a wasteful number, since it uses less digits than its factorization.

6409861071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113526.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 6409861071 is about 80061.6079716115. The cubic root of 6409861071 is about 1857.5886073879.

The spelling of 6409861071 in words is "six billion, four hundred nine million, eight hundred sixty-one thousand, seventy-one".