6855440998 has 32 divisors (see below), whose sum is σ = 12427204608. Its totient is φ = 2773915200.

The previous prime is 6855440983. The next prime is 6855441011. The reversal of 6855440998 is 8990445586.

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, 174840 + ... + 210427.

It is an arithmetic number, because the mean of its divisors is an integer number (388350144).

Almost surely, 2^6855440998 is an apocalyptic number.

6855440998 is a deficient number, since it is larger than the sum of its proper divisors (5571763610).

6855440998 is a wasteful number, since it uses less digits than its factorization.

6855440998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385348.

The product of its (nonzero) digits is 12441600, while the sum is 58.

The square root of 6855440998 is about 82797.5905325753. The cubic root of 6855440998 is about 1899.6713187679.

The spelling of 6855440998 in words is "six billion, eight hundred fifty-five million, four hundred forty thousand, nine hundred ninety-eight".