26889717412 has 24 divisors (see below), whose sum is σ = 47199887000. Its totient is φ = 13404082176.

The previous prime is 26889717401. The next prime is 26889717467. The reversal of 26889717412 is 21471798862.

It can be written as a sum of positive squares in 4 ways, for example, as 1806760036 + 25082957376 = 42506^2 + 158376^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2781964 + ... + 2791612.

Almost surely, 2^26889717412 is an apocalyptic number.

It is an amenable number.

26889717412 is a deficient number, since it is larger than the sum of its proper divisors (20310169588).

26889717412 is a wasteful number, since it uses less digits than its factorization.

26889717412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11695 (or 11693 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 55.

The spelling of 26889717412 in words is "twenty-six billion, eight hundred eighty-nine million, seven hundred seventeen thousand, four hundred twelve".