26506021444 has 24 divisors (see below), whose sum is σ = 56130399360. Its totient is φ = 10691504256.

The previous prime is 26506021417. The next prime is 26506021447. The reversal of 26506021444 is 44412060562.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (26506021447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27841984 + ... + 27842935.

It is an arithmetic number, because the mean of its divisors is an integer number (2338766640).

Almost surely, 2^26506021444 is an apocalyptic number.

It is an amenable number.

26506021444 is an abundant number, since it is smaller than the sum of its proper divisors (29624377916).

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

26506021444 is a wasteful number, since it uses less digits than its factorization.

26506021444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55684947 (or 55684945 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The spelling of 26506021444 in words is "twenty-six billion, five hundred six million, twenty-one thousand, four hundred forty-four".