26398062220 has 12 divisors (see below), whose sum is σ = 55435930704. Its totient is φ = 10559224880.

The previous prime is 26398062209. The next prime is 26398062233. The reversal of 26398062220 is 2226089362.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 659951536 + ... + 659951575.

It is an arithmetic number, because the mean of its divisors is an integer number (4619660892).

Almost surely, 2^26398062220 is an apocalyptic number.

26398062220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26398062220 is an abundant number, since it is smaller than the sum of its proper divisors (29037868484).

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

26398062220 is a wasteful number, since it uses less digits than its factorization.

26398062220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319903120 (or 1319903118 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 26398062220 in words is "twenty-six billion, three hundred ninety-eight million, sixty-two thousand, two hundred twenty".