26243121077264 has 120 divisors (see below), whose sum is σ = 63803246127768. Its totient is φ = 10364617267200.

The previous prime is 26243121077249. The next prime is 26243121077291. The reversal of 26243121077264 is 46277012134262.

It can be written as a sum of positive squares in 4 ways, for example, as 1223917390864 + 25019203686400 = 1106308^2 + 5001920^2 .

It is a super-3 number, since 3×26243121077264³ (a number of 41 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3983234 + ... + 8267550.

Almost surely, 2^{26243121077264} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26243121077264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31901623063884).

26243121077264 is an abundant number, since it is smaller than the sum of its proper divisors (37560125050504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26243121077264 is a wasteful number, since it uses less digits than its factorization.

26243121077264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4284953 (or 4284940 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 47.

The spelling of 26243121077264 in words is "twenty-six trillion, two hundred forty-three billion, one hundred twenty-one million, seventy-seven thousand, two hundred sixty-four".