26328222977 has 6 divisors (see below), whose sum is σ = 30626708418. Its totient is φ = 22567048224.

The previous prime is 26328222971. The next prime is 26328223049. The reversal of 26328222977 is 77922282362.

It can be written as a sum of positive squares in only one way, i.e., 25893959056 + 434263921 = 160916^2 + 20839^2 .

It is not a de Polignac number, because 26328222977 - 2⁴ = 26328222961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26328222971) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 268655288 + ... + 268655385.

It is an arithmetic number, because the mean of its divisors is an integer number (5104451403).

Almost surely, 2^26328222977 is an apocalyptic number.

It is an amenable number.

26328222977 is a deficient number, since it is larger than the sum of its proper divisors (4298485441).

26328222977 is an equidigital number, since it uses as much as digits as its factorization.

26328222977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537310687 (or 537310680 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 50.

The spelling of 26328222977 in words is "twenty-six billion, three hundred twenty-eight million, two hundred twenty-two thousand, nine hundred seventy-seven".