26646022044 has 36 divisors (see below), whose sum is σ = 67492446840. Its totient is φ = 8863911840.

The previous prime is 26646022043. The next prime is 26646022061. The reversal of 26646022044 is 44022064662.

26646022044 is a `hidden beast` number, since 2 + 6 + 6 + 4 + 602 + 2 + 0 + 44 = 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 (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26646022043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 736059 + ... + 771410.

It is an arithmetic number, because the mean of its divisors is an integer number (1874790190).

Almost surely, 2^26646022044 is an apocalyptic number.

It is an amenable number.

26646022044 is an abundant number, since it is smaller than the sum of its proper divisors (40846424796).

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

26646022044 is a wasteful number, since it uses less digits than its factorization.

26646022044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507970 (or 1507965 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

The spelling of 26646022044 in words is "twenty-six billion, six hundred forty-six million, twenty-two thousand, forty-four".