2675251772581 has 2 divisors, whose sum is σ = 2675251772582. Its totient is φ = 2675251772580.

The previous prime is 2675251772551. The next prime is 2675251772647. The reversal of 2675251772581 is 1852771525762.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1546963812900 + 1128287959681 = 1243770^2 + 1062209^2 .

It is a cyclic number.

It is not a de Polignac number, because 2675251772581 - 2¹⁷ = 2675251641509 is a prime.

It is a super-2 number, since 2×2675251772581² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2675251772551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1337625886290 + 1337625886291.

It is an arithmetic number, because the mean of its divisors is an integer number (1337625886291).

Almost surely, 2^{2675251772581} is an apocalyptic number.

It is an amenable number.

2675251772581 is a deficient number, since it is larger than the sum of its proper divisors (1).

2675251772581 is an equidigital number, since it uses as much as digits as its factorization.

2675251772581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16464000, while the sum is 58.

The spelling of 2675251772581 in words is "two trillion, six hundred seventy-five billion, two hundred fifty-one million, seven hundred seventy-two thousand, five hundred eighty-one".