26618200320 has 144 divisors (see below), whose sum is σ = 85104899712. Its totient is φ = 7090421760.

The previous prime is 26618200261. The next prime is 26618200337. The reversal of 26618200320 is 2300281662.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 4078660 + ... + 4085180.

It is an arithmetic number, because the mean of its divisors is an integer number (591006248).

Almost surely, 2^26618200320 is an apocalyptic number.

26618200320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26618200320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42552449856).

26618200320 is an abundant number, since it is smaller than the sum of its proper divisors (58486699392).

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

26618200320 is a wasteful number, since it uses less digits than its factorization.

26618200320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7608 (or 7594 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 26618200320 its reverse (2300281662), we get a palindrome (28918481982).

The spelling of 26618200320 in words is "twenty-six billion, six hundred eighteen million, two hundred thousand, three hundred twenty".