26872195090 has 16 divisors (see below), whose sum is σ = 52090716888. Its totient is φ = 9922041216.

The previous prime is 26872195087. The next prime is 26872195109. The reversal of 26872195090 is 9059127862.

It can be written as a sum of positive squares in 4 ways, for example, as 22219181721 + 4653013369 = 149061^2 + 68213^2 .

It is a super-2 number, since 2×26872195090² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103354467 + ... + 103354726.

Almost surely, 2^26872195090 is an apocalyptic number.

26872195090 is a deficient number, since it is larger than the sum of its proper divisors (25218521798).

26872195090 is a wasteful number, since it uses less digits than its factorization.

26872195090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206709213.

The product of its (nonzero) digits is 544320, while the sum is 49.

The spelling of 26872195090 in words is "twenty-six billion, eight hundred seventy-two million, one hundred ninety-five thousand, ninety".