26878851236 has 6 divisors (see below), whose sum is σ = 47037989670. Its totient is φ = 13439425616.

The previous prime is 26878851179. The next prime is 26878851253. The reversal of 26878851236 is 63215887862.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 13702107136 + 13176744100 = 117056^2 + 114790^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3359856401 + ... + 3359856408.

It is an arithmetic number, because the mean of its divisors is an integer number (7839664945).

Almost surely, 2^26878851236 is an apocalyptic number.

It is an amenable number.

26878851236 is a deficient number, since it is larger than the sum of its proper divisors (20159138434).

26878851236 is a wasteful number, since it uses less digits than its factorization.

26878851236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6719712813 (or 6719712811 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 56.

The spelling of 26878851236 in words is "twenty-six billion, eight hundred seventy-eight million, eight hundred fifty-one thousand, two hundred thirty-six".