26221511068 has 12 divisors (see below), whose sum is σ = 45997164360. Its totient is φ = 13079464112.

The previous prime is 26221511039. The next prime is 26221511081. The reversal of 26221511068 is 86011512262.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7820971 + ... + 7824322.

It is an arithmetic number, because the mean of its divisors is an integer number (3833097030).

Almost surely, 2^26221511068 is an apocalyptic number.

It is an amenable number.

26221511068 is a deficient number, since it is larger than the sum of its proper divisors (19775653292).

26221511068 is a wasteful number, since it uses less digits than its factorization.

26221511068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15645716 (or 15645714 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

It can be divided in two parts, 26221 and 511068, that added together give a square (537289 = 733²).

The spelling of 26221511068 in words is "twenty-six billion, two hundred twenty-one million, five hundred eleven thousand, sixty-eight".