26287115472 has 240 divisors, whose sum is σ = 78155176320. Its totient is φ = 8231190528.

The previous prime is 26287115471. The next prime is 26287115479. The reversal of 26287115472 is 27451178262.

26287115472 is a `hidden beast` number, since 2 + 62 + 8 + 7 + 115 + 472 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26287115471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 75755203 + ... + 75755549.

It is an arithmetic number, because the mean of its divisors is an integer number (325646568).

Almost surely, 2^26287115472 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 26287115472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39077588160).

26287115472 is an abundant number, since it is smaller than the sum of its proper divisors (51868060848).

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

26287115472 is a wasteful number, since it uses less digits than its factorization.

26287115472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730 (or 721 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The spelling of 26287115472 in words is "twenty-six billion, two hundred eighty-seven million, one hundred fifteen thousand, four hundred seventy-two".