26265061564 has 24 divisors (see below), whose sum is σ = 52570572768. Its totient is φ = 11247787200.

The previous prime is 26265061541. The next prime is 26265061567. The reversal of 26265061564 is 46516056262.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 26265061564.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26265061567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324079 + ... + 396934.

It is an arithmetic number, because the mean of its divisors is an integer number (2190440532).

Almost surely, 2^26265061564 is an apocalyptic number.

It is an amenable number.

26265061564 is an abundant number, since it is smaller than the sum of its proper divisors (26305511204).

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

26265061564 is a wasteful number, since it uses less digits than its factorization.

26265061564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722325 (or 722323 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 43.

It can be divided in two parts, 26265061 and 564, that added together give a square (26265625 = 5125²).

The spelling of 26265061564 in words is "twenty-six billion, two hundred sixty-five million, sixty-one thousand, five hundred sixty-four".