26610520404 has 96 divisors (see below), whose sum is σ = 72025841664. Its totient is φ = 7579186560.

The previous prime is 26610520367. The next prime is 26610520411. The reversal of 26610520404 is 40402501662.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8394 + ... + 230849.

It is an arithmetic number, because the mean of its divisors is an integer number (750269184).

Almost surely, 2^26610520404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26610520404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36012920832).

26610520404 is an abundant number, since it is smaller than the sum of its proper divisors (45415321260).

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

26610520404 is a wasteful number, since it uses less digits than its factorization.

26610520404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239317 (or 239315 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 26610520404 in words is "twenty-six billion, six hundred ten million, five hundred twenty thousand, four hundred four".