6859465639 has 8 divisors (see below), whose sum is σ = 7389370800. Its totient is φ = 6329882496.

The previous prime is 6859465637. The next prime is 6859465663. The reversal of 6859465639 is 9365649586.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6859465639 - 2¹ = 6859465637 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 (6859465637) 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, 35314 + ... + 122335.

It is an arithmetic number, because the mean of its divisors is an integer number (923671350).

Almost surely, 2^6859465639 is an apocalyptic number.

6859465639 is a deficient number, since it is larger than the sum of its proper divisors (529905161).

6859465639 is a wasteful number, since it uses less digits than its factorization.

6859465639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161009.

The product of its digits is 41990400, while the sum is 61.

The square root of 6859465639 is about 82821.8910614820. The cubic root of 6859465639 is about 1900.0429943180.

The spelling of 6859465639 in words is "six billion, eight hundred fifty-nine million, four hundred sixty-five thousand, six hundred thirty-nine".