26280756768 has 96 divisors (see below), whose sum is σ = 81561029760. Its totient is φ = 7249858560.

The previous prime is 26280756647. The next prime is 26280756769. The reversal of 26280756768 is 86765708262.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (26280756769) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 654793 + ... + 693768.

It is an arithmetic number, because the mean of its divisors is an integer number (849594060).

Almost surely, 2^26280756768 is an apocalyptic number.

26280756768 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

26280756768 is an abundant number, since it is smaller than the sum of its proper divisors (55280272992).

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

26280756768 is a wasteful number, since it uses less digits than its factorization.

26280756768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348610 (or 1348602 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 57.

The spelling of 26280756768 in words is "twenty-six billion, two hundred eighty million, seven hundred fifty-six thousand, seven hundred sixty-eight".