26241745621 has 32 divisors (see below), whose sum is σ = 33421248000. Its totient is φ = 20470020480.

The previous prime is 26241745589. The next prime is 26241745627. The reversal of 26241745621 is 12654714262.

It is a happy number.

It is not a de Polignac number, because 26241745621 - 2⁵ = 26241745589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26241745627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 275145 + ... + 358033.

It is an arithmetic number, because the mean of its divisors is an integer number (1044414000).

Almost surely, 2^26241745621 is an apocalyptic number.

It is an amenable number.

26241745621 is a deficient number, since it is larger than the sum of its proper divisors (7179502379).

26241745621 is an equidigital number, since it uses as much as digits as its factorization.

26241745621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82994 (or 82980 counting only the distinct ones).

The product of its digits is 161280, while the sum is 40.

The spelling of 26241745621 in words is "twenty-six billion, two hundred forty-one million, seven hundred forty-five thousand, six hundred twenty-one".