26547043842 has 64 divisors (see below), whose sum is σ = 65151112320. Its totient is φ = 8044544160.

The previous prime is 26547043837. The next prime is 26547043883. The reversal of 26547043842 is 24834074562.

It is a happy number.

26547043842 is a `hidden beast` number, since 2 + 65 + 470 + 43 + 84 + 2 = 666.

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 31 ways as a sum of consecutive naturals, for example, 227763 + ... + 323990.

It is an arithmetic number, because the mean of its divisors is an integer number (1017986130).

Almost surely, 2^26547043842 is an apocalyptic number.

26547043842 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

26547043842 is an abundant number, since it is smaller than the sum of its proper divisors (38604068478).

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

26547043842 is an equidigital number, since it uses as much as digits as its factorization.

26547043842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551787 (or 551769 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 45.

The spelling of 26547043842 in words is "twenty-six billion, five hundred forty-seven million, forty-three thousand, eight hundred forty-two".