26544021444 has 36 divisors (see below), whose sum is σ = 67103516844. Its totient is φ = 8847198912.

The previous prime is 26544021431. The next prime is 26544021457. The reversal of 26544021444 is 44412044562.

It is an interprime number because it is at equal distance from previous prime (26544021431) and next prime (26544021457).

It can be written as a sum of positive squares in 2 ways, for example, as 12086363844 + 14457657600 = 109938^2 + 120240^2 .

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 (36).

It is a junction number, because it is equal to n+sod(n) for n = 26544021399 and 26544021408.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 468454 + ... + 522050.

It is an arithmetic number, because the mean of its divisors is an integer number (1863986579).

Almost surely, 2^26544021444 is an apocalyptic number.

It is an amenable number.

26544021444 is an abundant number, since it is smaller than the sum of its proper divisors (40559495400).

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

26544021444 is a wasteful number, since it uses less digits than its factorization.

26544021444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67364 (or 67359 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 36.

The spelling of 26544021444 in words is "twenty-six billion, five hundred forty-four million, twenty-one thousand, four hundred forty-four".