26228538662901 has 4 divisors (see below), whose sum is σ = 34971384883872. Its totient is φ = 17485692441932.

The previous prime is 26228538662897. The next prime is 26228538662917. The reversal of 26228538662901 is 10926683582262.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26228538662901 - 2² = 26228538662897 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26228538662201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4371423110481 + ... + 4371423110486.

It is an arithmetic number, because the mean of its divisors is an integer number (8742846220968).

Almost surely, 2^{26228538662901} is an apocalyptic number.

It is an amenable number.

26228538662901 is a deficient number, since it is larger than the sum of its proper divisors (8742846220971).

26228538662901 is an equidigital number, since it uses as much as digits as its factorization.

26228538662901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8742846220970.

The product of its (nonzero) digits is 29859840, while the sum is 60.

The spelling of 26228538662901 in words is "twenty-six trillion, two hundred twenty-eight billion, five hundred thirty-eight million, six hundred sixty-two thousand, nine hundred one".