26836861028 has 12 divisors (see below), whose sum is σ = 49727124972. Its totient is φ = 12629111040.

The previous prime is 26836861019. The next prime is 26836861031. The reversal of 26836861028 is 82016863862.

It can be written as a sum of positive squares in 2 ways, for example, as 25072188964 + 1764672064 = 158342^2 + 42008^2 .

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, 197329793 + ... + 197329928.

It is an arithmetic number, because the mean of its divisors is an integer number (4143927081).

Almost surely, 2^26836861028 is an apocalyptic number.

It is an amenable number.

26836861028 is a deficient number, since it is larger than the sum of its proper divisors (22890263944).

26836861028 is a wasteful number, since it uses less digits than its factorization.

26836861028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394659742 (or 394659740 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 50.

The spelling of 26836861028 in words is "twenty-six billion, eight hundred thirty-six million, eight hundred sixty-one thousand, twenty-eight".