26850504872 has 8 divisors (see below), whose sum is σ = 50344696650. Its totient is φ = 13425252432.

The previous prime is 26850504869. The next prime is 26850504881. The reversal of 26850504872 is 27840505862.

It can be written as a sum of positive squares in only one way, i.e., 24663446116 + 2187058756 = 157046^2 + 46766^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×26850504872² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1678156547 + ... + 1678156562.

Almost surely, 2^26850504872 is an apocalyptic number.

It is an amenable number.

26850504872 is a deficient number, since it is larger than the sum of its proper divisors (23494191778).

26850504872 is a wasteful number, since it uses less digits than its factorization.

26850504872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3356313115 (or 3356313111 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 47.

The spelling of 26850504872 in words is "twenty-six billion, eight hundred fifty million, five hundred four thousand, eight hundred seventy-two".