26425004500 has 96 divisors (see below), whose sum is σ = 59909391360. Its totient is φ = 10171440000.

The previous prime is 26425004491. The next prime is 26425004503. The reversal of 26425004500 is 540052462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26425004503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2800791 + ... + 2810209.

It is an arithmetic number, because the mean of its divisors is an integer number (624056160).

Almost surely, 2^26425004500 is an apocalyptic number.

26425004500 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 26425004500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29954695680).

26425004500 is an abundant number, since it is smaller than the sum of its proper divisors (33484386860).

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

26425004500 is a wasteful number, since it uses less digits than its factorization.

26425004500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9650 (or 9638 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 26425004500 its reverse (540052462), we get a palindrome (26965056962).

The spelling of 26425004500 in words is "twenty-six billion, four hundred twenty-five million, four thousand, five hundred".