26240280864680 has 16 divisors (see below), whose sum is σ = 59040631945620. Its totient is φ = 10496112345856.

The previous prime is 26240280864661. The next prime is 26240280864697. The reversal of 26240280864680 is 8646808204262.

It can be written as a sum of positive squares in 2 ways, for example, as 26041609197604 + 198671667076 = 5103098^2 + 445726^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328003510769 + ... + 328003510848.

Almost surely, 2^{26240280864680} is an apocalyptic number.

26240280864680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26240280864680 is an abundant number, since it is smaller than the sum of its proper divisors (32800351080940).

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

26240280864680 is a wasteful number, since it uses less digits than its factorization.

26240280864680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656007021628 (or 656007021624 counting only the distinct ones).

The product of its (nonzero) digits is 14155776, while the sum is 56.

The spelling of 26240280864680 in words is "twenty-six trillion, two hundred forty billion, two hundred eighty million, eight hundred sixty-four thousand, six hundred eighty".