26640488404596 has 48 divisors (see below), whose sum is σ = 67812513773760. Its totient is φ = 8072832241920.

The previous prime is 26640488404531. The next prime is 26640488404631. The reversal of 26640488404596 is 69540488404662.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

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, 31536240 + ... + 32369976.

It is an arithmetic number, because the mean of its divisors is an integer number (1412760703620).

Almost surely, 2^{26640488404596} is an apocalyptic number.

It is an amenable number.

26640488404596 is an abundant number, since it is smaller than the sum of its proper divisors (41172025369164).

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

26640488404596 is a wasteful number, since it uses less digits than its factorization.

26640488404596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075824 (or 1075822 counting only the distinct ones).

The product of its (nonzero) digits is 318504960, while the sum is 66.

Adding to 26640488404596 its sum of digits (66), we get a palindrome (26640488404662).

The spelling of 26640488404596 in words is "twenty-six trillion, six hundred forty billion, four hundred eighty-eight million, four hundred four thousand, five hundred ninety-six".