6390822855 has 16 divisors (see below), whose sum is σ = 10265109984. Its totient is φ = 3395174400.

The previous prime is 6390822847. The next prime is 6390822863. The reversal of 6390822855 is 5582280936.

It is an interprime number because it is at equal distance from previous prime (6390822847) and next prime (6390822863).

It is not a de Polignac number, because 6390822855 - 2³ = 6390822847 is a prime.

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, 825046 + ... + 832755.

It is an arithmetic number, because the mean of its divisors is an integer number (641569374).

Almost surely, 2^6390822855 is an apocalyptic number.

6390822855 is a deficient number, since it is larger than the sum of its proper divisors (3874287129).

6390822855 is a wasteful number, since it uses less digits than its factorization.

6390822855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658066.

The product of its (nonzero) digits is 1036800, while the sum is 48.

The square root of 6390822855 is about 79942.6222674738. The cubic root of 6390822855 is about 1855.7476811508.

The spelling of 6390822855 in words is "six billion, three hundred ninety million, eight hundred twenty-two thousand, eight hundred fifty-five".