26535502664 has 64 divisors (see below), whose sum is σ = 54991872000. Its totient is φ = 11903630400.

The previous prime is 26535502663. The next prime is 26535502673. The reversal of 26535502664 is 46620553562.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (26535502663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2546537 + ... + 2556935.

It is an arithmetic number, because the mean of its divisors is an integer number (859248000).

Almost surely, 2^26535502664 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 26535502664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27495936000).

26535502664 is an abundant number, since it is smaller than the sum of its proper divisors (28456369336).

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

26535502664 is a wasteful number, since it uses less digits than its factorization.

26535502664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10794 (or 10790 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 44.

The spelling of 26535502664 in words is "twenty-six billion, five hundred thirty-five million, five hundred two thousand, six hundred sixty-four".