2542512543361 has 6 divisors (see below), whose sum is σ = 2957616632130. Its totient is φ = 2179296465696.

The previous prime is 2542512543359. The next prime is 2542512543371. The reversal of 2542512543361 is 1633452152452.

It can be written as a sum of positive squares in only one way, i.e., 2424825124225 + 117687419136 = 1557185^2 + 343056^2 .

It is not a de Polignac number, because 2542512543361 - 2¹ = 2542512543359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2542512543371) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25944005496 + ... + 25944005593.

It is an arithmetic number, because the mean of its divisors is an integer number (492936105355).

Almost surely, 2^{2542512543361} is an apocalyptic number.

It is an amenable number.

2542512543361 is a deficient number, since it is larger than the sum of its proper divisors (415104088769).

2542512543361 is an equidigital number, since it uses as much as digits as its factorization.

2542512543361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51888011103 (or 51888011096 counting only the distinct ones).

The product of its digits is 864000, while the sum is 43.

The spelling of 2542512543361 in words is "two trillion, five hundred forty-two billion, five hundred twelve million, five hundred forty-three thousand, three hundred sixty-one".