26501204320 has 24 divisors (see below), whose sum is σ = 62609095584. Its totient is φ = 10600481664.

The previous prime is 26501204293. The next prime is 26501204363. The reversal of 26501204320 is 2340210562.

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, 82816104 + ... + 82816423.

It is an arithmetic number, because the mean of its divisors is an integer number (2608712316).

Almost surely, 2^26501204320 is an apocalyptic number.

26501204320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26501204320 is an abundant number, since it is smaller than the sum of its proper divisors (36107891264).

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

26501204320 is a wasteful number, since it uses less digits than its factorization.

26501204320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165632542 (or 165632534 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 26501204320 its reverse (2340210562), we get a palindrome (28841414882).

The spelling of 26501204320 in words is "twenty-six billion, five hundred one million, two hundred four thousand, three hundred twenty".