26355781260 has 36 divisors (see below), whose sum is σ = 79945870368. Its totient is φ = 7028208288.

The previous prime is 26355781237. The next prime is 26355781273. The reversal of 26355781260 is 6218755362.

26355781260 is a `hidden beast` number, since 2 + 6 + 3 + 5 + 578 + 12 + 60 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73210324 + ... + 73210683.

Almost surely, 2^26355781260 is an apocalyptic number.

26355781260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26355781260 is an abundant number, since it is smaller than the sum of its proper divisors (53590089108).

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

26355781260 is a wasteful number, since it uses less digits than its factorization.

26355781260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146421022 (or 146421017 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 26355781260 in words is "twenty-six billion, three hundred fifty-five million, seven hundred eighty-one thousand, two hundred sixty".