26388878897430 has 128 divisors (see below), whose sum is σ = 80424818703360. Its totient is φ = 6031626094080.

The previous prime is 26388878897413. The next prime is 26388878897431. The reversal of 26388878897430 is 3479887888362.

26388878897430 is a `hidden beast` number, since 2 + 6 + 38 + 8 + 8 + 78 + 89 + 7 + 430 = 666.

26388878897430 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 26388878897430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26388878897431) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 129346062 + ... + 129549918.

It is an arithmetic number, because the mean of its divisors is an integer number (628318896120).

Almost surely, 2^{26388878897430} is an apocalyptic number.

26388878897430 is an abundant number, since it is smaller than the sum of its proper divisors (54035939805930).

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

26388878897430 is a wasteful number, since it uses less digits than its factorization.

26388878897430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272371 (or 272365 counting only the distinct ones).

The product of its (nonzero) digits is 6242697216, while the sum is 81.

The spelling of 26388878897430 in words is "twenty-six trillion, three hundred eighty-eight billion, eight hundred seventy-eight million, eight hundred ninety-seven thousand, four hundred thirty".