26375636664 has 240 divisors, whose sum is σ = 80424261720. Its totient is φ = 8072213760.

The previous prime is 26375636641. The next prime is 26375636669. The reversal of 26375636664 is 46663657362.

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 26375636664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26375636669) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 24858694 + ... + 24859754.

Almost surely, 2^26375636664 is an apocalyptic number.

26375636664 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 26375636664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40212130860).

26375636664 is an abundant number, since it is smaller than the sum of its proper divisors (54048625056).

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

26375636664 is a wasteful number, since it uses less digits than its factorization.

26375636664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332 (or 1306 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 54.

The spelling of 26375636664 in words is "twenty-six billion, three hundred seventy-five million, six hundred thirty-six thousand, six hundred sixty-four".