26620280089021 has 8 divisors (see below), whose sum is σ = 27367730520120. Its totient is φ = 25874302468608.

The previous prime is 26620280088989. The next prime is 26620280089031. The reversal of 26620280089021 is 12098008202662.

It can be written as a sum of positive squares in 4 ways, for example, as 22955884912900 + 3664395176121 = 4791230^2 + 1914261^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26620280089021 - 2⁵ = 26620280088989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26620280089031) 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, 368166016 + ... + 368238313.

It is an arithmetic number, because the mean of its divisors is an integer number (3420966315015).

Almost surely, 2^{26620280089021} is an apocalyptic number.

It is an amenable number.

26620280089021 is a deficient number, since it is larger than the sum of its proper divisors (747450431099).

26620280089021 is an equidigital number, since it uses as much as digits as its factorization.

26620280089021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736405343.

The product of its (nonzero) digits is 331776, while the sum is 46.

The spelling of 26620280089021 in words is "twenty-six trillion, six hundred twenty billion, two hundred eighty million, eighty-nine thousand, twenty-one".