2542366450257 has 4 divisors (see below), whose sum is σ = 3389821933680. Its totient is φ = 1694910966836.

The previous prime is 2542366450193. The next prime is 2542366450277. The reversal of 2542366450257 is 7520546632452.

2542366450257 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2542366450257 - 2⁶ = 2542366450193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2542366450277) 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, 423727741707 + ... + 423727741712.

It is an arithmetic number, because the mean of its divisors is an integer number (847455483420).

Almost surely, 2^{2542366450257} is an apocalyptic number.

It is an amenable number.

2542366450257 is a deficient number, since it is larger than the sum of its proper divisors (847455483423).

2542366450257 is an equidigital number, since it uses as much as digits as its factorization.

2542366450257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847455483422.

The product of its (nonzero) digits is 12096000, while the sum is 51.

The spelling of 2542366450257 in words is "two trillion, five hundred forty-two billion, three hundred sixty-six million, four hundred fifty thousand, two hundred fifty-seven".