2764251422561 has 4 divisors (see below), whose sum is σ = 2764255218324. Its totient is φ = 2764247626800.

The previous prime is 2764251422549. The next prime is 2764251422641. The reversal of 2764251422561 is 1652241524672.

2764251422561 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 341073520225 + 2423177902336 = 584015^2 + 1556656^2 .

It is a cyclic number.

It is not a de Polignac number, because 2764251422561 - 2²² = 2764247228257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2764251422861) 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, 423950 + ... + 2389191.

It is an arithmetic number, because the mean of its divisors is an integer number (691063804581).

Almost surely, 2^{2764251422561} is an apocalyptic number.

It is an amenable number.

2764251422561 is a deficient number, since it is larger than the sum of its proper divisors (3795763).

2764251422561 is an equidigital number, since it uses as much as digits as its factorization.

2764251422561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3795762.

The product of its digits is 1612800, while the sum is 47.

The spelling of 2764251422561 in words is "two trillion, seven hundred sixty-four billion, two hundred fifty-one million, four hundred twenty-two thousand, five hundred sixty-one".