26504540647020 has 72 divisors (see below), whose sum is σ = 80401165462800. Its totient is φ = 7067520685440.

The previous prime is 26504540646979. The next prime is 26504540647021. The reversal of 26504540647020 is 2074604540562.

26504540647020 is a `hidden beast` number, since 2 + 6 + 50 + 454 + 0 + 64 + 70 + 20 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (26504540647021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131970 + ... + 7281929.

It is an arithmetic number, because the mean of its divisors is an integer number (1116682853650).

Almost surely, 2^{26504540647020} is an apocalyptic number.

26504540647020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26504540647020 is an abundant number, since it is smaller than the sum of its proper divisors (53896624815780).

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

26504540647020 is a wasteful number, since it uses less digits than its factorization.

26504540647020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7433775 (or 7433770 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 45.

The spelling of 26504540647020 in words is "twenty-six trillion, five hundred four billion, five hundred forty million, six hundred forty-seven thousand, twenty".