6864406869 has 8 divisors (see below), whose sum is σ = 9155764192. Its totient is φ = 4574660400.

The previous prime is 6864406847. The next prime is 6864406937. The reversal of 6864406869 is 9686044686.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6864406869 - 2¹⁷ = 6864275797 is a prime.

It is a super-2 number, since 2×6864406869² = 94240163326348766322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6864406069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392734 + ... + 409839.

It is an arithmetic number, because the mean of its divisors is an integer number (1144470524).

Almost surely, 2^6864406869 is an apocalyptic number.

It is an amenable number.

6864406869 is a deficient number, since it is larger than the sum of its proper divisors (2291357323).

6864406869 is a wasteful number, since it uses less digits than its factorization.

6864406869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805427.

The product of its (nonzero) digits is 11943936, while the sum is 57.

The square root of 6864406869 is about 82851.7161499990. The cubic root of 6864406869 is about 1900.4991180885.

The spelling of 6864406869 in words is "six billion, eight hundred sixty-four million, four hundred six thousand, eight hundred sixty-nine".