6694621098 has 64 divisors (see below), whose sum is σ = 14837022720. Its totient is φ = 1996747200.

The previous prime is 6694621093. The next prime is 6694621099. The reversal of 6694621098 is 8901264966.

It is a self number, because there is not a number n which added to its sum of digits gives 6694621098.

It is not an unprimeable number, because it can be changed into a prime (6694621091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5233623 + ... + 5234901.

It is an arithmetic number, because the mean of its divisors is an integer number (231828480).

Almost surely, 2^6694621098 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6694621098, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7418511360).

6694621098 is an abundant number, since it is smaller than the sum of its proper divisors (8142401622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6694621098 is a wasteful number, since it uses less digits than its factorization.

6694621098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2483.

The product of its (nonzero) digits is 1119744, while the sum is 51.

The square root of 6694621098 is about 81820.6642480981. The cubic root of 6694621098 is about 1884.6990021446.

The spelling of 6694621098 in words is "six billion, six hundred ninety-four million, six hundred twenty-one thousand, ninety-eight".