26745513320 has 64 divisors (see below), whose sum is σ = 62287218000. Its totient is φ = 10323539968.

The previous prime is 26745513293. The next prime is 26745513359. The reversal of 26745513320 is 2331554762.

It can be written as a sum of positive squares in 8 ways, for example, as 12892694116 + 13852819204 = 113546^2 + 117698^2 .

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, 2492126 + ... + 2502834.

Almost surely, 2^26745513320 is an apocalyptic number.

26745513320 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 26745513320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31143609000).

26745513320 is an abundant number, since it is smaller than the sum of its proper divisors (35541704680).

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

26745513320 is a wasteful number, since it uses less digits than its factorization.

26745513320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12902 (or 12898 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 38.

The spelling of 26745513320 in words is "twenty-six billion, seven hundred forty-five million, five hundred thirteen thousand, three hundred twenty".