26375436864 has 336 divisors, whose sum is σ = 91607030400. Its totient is φ = 7289533440.

The previous prime is 26375436851. The next prime is 26375436883. The reversal of 26375436864 is 46863457362.

26375436864 is a `hidden beast` number, since 2 + 6 + 37 + 543 + 6 + 8 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 26375436864.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11623122 + ... + 11625390.

Almost surely, 2^26375436864 is an apocalyptic number.

26375436864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26375436864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45803515200).

26375436864 is an abundant number, since it is smaller than the sum of its proper divisors (65231593536).

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

26375436864 is a wasteful number, since it uses less digits than its factorization.

26375436864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2359 (or 2312 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 54.

The spelling of 26375436864 in words is "twenty-six billion, three hundred seventy-five million, four hundred thirty-six thousand, eight hundred sixty-four".