6427722855 has 16 divisors (see below), whose sum is σ = 10291912704. Its totient is φ = 3425600160.

The previous prime is 6427722827. The next prime is 6427722871. The reversal of 6427722855 is 5582277246.

It is not a de Polignac number, because 6427722855 - 2¹³ = 6427714663 is a prime.

It is a super-2 number, since 2×6427722855² = 82631242201378702050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136231 + ... + 177240.

It is an arithmetic number, because the mean of its divisors is an integer number (643244544).

Almost surely, 2^6427722855 is an apocalyptic number.

6427722855 is a deficient number, since it is larger than the sum of its proper divisors (3864189849).

6427722855 is a wasteful number, since it uses less digits than its factorization.

6427722855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314846.

The product of its digits is 1881600, while the sum is 48.

The square root of 6427722855 is about 80173.0806131335. The cubic root of 6427722855 is about 1859.3124655682.

The spelling of 6427722855 in words is "six billion, four hundred twenty-seven million, seven hundred twenty-two thousand, eight hundred fifty-five".