6361317809 has 16 divisors (see below), whose sum is σ = 8020114560. Its totient is φ = 4901170560.

The previous prime is 6361317799. The next prime is 6361317821. The reversal of 6361317809 is 9087131636.

It is not a de Polignac number, because 6361317809 - 2⁴ = 6361317793 is a prime.

It is a super-3 number, since 3×6361317809³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6361317809.

It is not an unprimeable number, because it can be changed into a prime (6361317889) 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, 457274 + ... + 470979.

It is an arithmetic number, because the mean of its divisors is an integer number (501257160).

Almost surely, 2^6361317809 is an apocalyptic number.

It is an amenable number.

6361317809 is a deficient number, since it is larger than the sum of its proper divisors (1658796751).

6361317809 is a wasteful number, since it uses less digits than its factorization.

6361317809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928360.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 6361317809 is about 79757.8698875540. The cubic root of 6361317809 is about 1852.8874130724.

The spelling of 6361317809 in words is "six billion, three hundred sixty-one million, three hundred seventeen thousand, eight hundred nine".