6859352647555 has 4 divisors (see below), whose sum is σ = 8231223177072. Its totient is φ = 5487482118040.

The previous prime is 6859352647489. The next prime is 6859352647579. The reversal of 6859352647555 is 5557462539586.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-6859352647555 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 685935264751 + ... + 685935264760.

It is an arithmetic number, because the mean of its divisors is an integer number (2057805794268).

Almost surely, 2^{6859352647555} is an apocalyptic number.

6859352647555 is a deficient number, since it is larger than the sum of its proper divisors (1371870529517).

6859352647555 is a wasteful number, since it uses less digits than its factorization.

6859352647555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371870529516.

The product of its digits is 1360800000, while the sum is 70.

The spelling of 6859352647555 in words is "six trillion, eight hundred fifty-nine billion, three hundred fifty-two million, six hundred forty-seven thousand, five hundred fifty-five".