26926948121 has 2 divisors, whose sum is σ = 26926948122. Its totient is φ = 26926948120.

The previous prime is 26926948073. The next prime is 26926948207. The reversal of 26926948121 is 12184962962.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22033246096 + 4893702025 = 148436^2 + 69955^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26926948121 is a prime.

It is a super-2 number, since 2×26926948121² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26926948121.

It is not a weakly prime, because it can be changed into another prime (26926948721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13463474060 + 13463474061.

It is an arithmetic number, because the mean of its divisors is an integer number (13463474061).

Almost surely, 2^26926948121 is an apocalyptic number.

It is an amenable number.

26926948121 is a deficient number, since it is larger than the sum of its proper divisors (1).

26926948121 is an equidigital number, since it uses as much as digits as its factorization.

26926948121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 746496, while the sum is 50.

The spelling of 26926948121 in words is "twenty-six billion, nine hundred twenty-six million, nine hundred forty-eight thousand, one hundred twenty-one".