2625207266881 has 4 divisors (see below), whose sum is σ = 2625261625732. Its totient is φ = 2625152908032.

The previous prime is 2625207266783. The next prime is 2625207266921. The reversal of 2625207266881 is 1886627025262.

2625207266881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2080976468481 + 544230798400 = 1442559^2 + 737720^2 .

It is a cyclic number.

It is not a de Polignac number, because 2625207266881 - 2⁷ = 2625207266753 is a prime.

It is a super-3 number, since 3×2625207266881³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2625207266681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27106920 + ... + 27203593.

It is an arithmetic number, because the mean of its divisors is an integer number (656315406433).

Almost surely, 2^{2625207266881} is an apocalyptic number.

It is an amenable number.

2625207266881 is a deficient number, since it is larger than the sum of its proper divisors (54358851).

2625207266881 is an equidigital number, since it uses as much as digits as its factorization.

2625207266881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54358850.

The product of its (nonzero) digits is 7741440, while the sum is 55.

The spelling of 2625207266881 in words is "two trillion, six hundred twenty-five billion, two hundred seven million, two hundred sixty-six thousand, eight hundred eighty-one".