26387968320 has 224 divisors, whose sum is σ = 106389830400. Its totient is φ = 6031521792.

The previous prime is 26387968297. The next prime is 26387968337. The reversal of 26387968320 is 2386978362.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (224).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157675 + ... + 278634.

It is an arithmetic number, because the mean of its divisors is an integer number (474954600).

Almost surely, 2^26387968320 is an apocalyptic number.

26387968320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26387968320 is an abundant number, since it is smaller than the sum of its proper divisors (80001862080).

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

26387968320 is a wasteful number, since it uses less digits than its factorization.

26387968320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436342 (or 436326 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The spelling of 26387968320 in words is "twenty-six billion, three hundred eighty-seven million, nine hundred sixty-eight thousand, three hundred twenty".