26621214320 has 20 divisors (see below), whose sum is σ = 61894323480. Its totient is φ = 10648485696.

The previous prime is 26621214313. The next prime is 26621214343. The reversal of 26621214320 is 2341212662.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166382510 + ... + 166382669.

It is an arithmetic number, because the mean of its divisors is an integer number (3094716174).

Almost surely, 2^26621214320 is an apocalyptic number.

26621214320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26621214320 is an abundant number, since it is smaller than the sum of its proper divisors (35273109160).

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

26621214320 is a wasteful number, since it uses less digits than its factorization.

26621214320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332765192 (or 332765186 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 26621214320 its reverse (2341212662), we get a palindrome (28962426982).

The spelling of 26621214320 in words is "twenty-six billion, six hundred twenty-one million, two hundred fourteen thousand, three hundred twenty".