6409860667 has 12 divisors (see below), whose sum is σ = 7530199776. Its totient is φ = 5439764400.

The previous prime is 6409860641. The next prime is 6409860689. The reversal of 6409860667 is 7660689046.

It is not a de Polignac number, because 6409860667 - 2³¹ = 4262377019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6409866667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 642643 + ... + 652540.

It is an arithmetic number, because the mean of its divisors is an integer number (627516648).

Almost surely, 2^6409860667 is an apocalyptic number.

6409860667 is a deficient number, since it is larger than the sum of its proper divisors (1120339109).

6409860667 is a wasteful number, since it uses less digits than its factorization.

6409860667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295298 (or 1295291 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 52.

The square root of 6409860667 is about 80061.6054485544. The cubic root of 6409860667 is about 1857.5885683613.

The spelling of 6409860667 in words is "six billion, four hundred nine million, eight hundred sixty thousand, six hundred sixty-seven".