26442893284520 has 16 divisors (see below), whose sum is σ = 59496509890260. Its totient is φ = 10577157313792.

The previous prime is 26442893284459. The next prime is 26442893284573. The reversal of 26442893284520 is 2548239824462.

It can be written as a sum of positive squares in 2 ways, for example, as 26308507989124 + 134385295396 = 5129182^2 + 366586^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 26442893284520.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330536166017 + ... + 330536166096.

Almost surely, 2^{26442893284520} is an apocalyptic number.

26442893284520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26442893284520 is an abundant number, since it is smaller than the sum of its proper divisors (33053616605740).

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

26442893284520 is a wasteful number, since it uses less digits than its factorization.

26442893284520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661072332124 (or 661072332120 counting only the distinct ones).

The product of its (nonzero) digits is 53084160, while the sum is 59.

The spelling of 26442893284520 in words is "twenty-six trillion, four hundred forty-two billion, eight hundred ninety-three million, two hundred eighty-four thousand, five hundred twenty".