2543031445457 has 6 divisors (see below), whose sum is σ = 2598289713618. Its totient is φ = 2488924391264.

The previous prime is 2543031445447. The next prime is 2543031445517. The reversal of 2543031445457 is 7545441303452.

It can be written as a sum of positive squares in only one way, i.e., 1696412471296 + 846618974161 = 1302464^2 + 920119^2 .

It is not a de Polignac number, because 2543031445457 - 2⁶ = 2543031445393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2543031445447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 575604728 + ... + 575609145.

It is an arithmetic number, because the mean of its divisors is an integer number (433048285603).

Almost surely, 2^{2543031445457} is an apocalyptic number.

It is an amenable number.

2543031445457 is a deficient number, since it is larger than the sum of its proper divisors (55258268161).

2543031445457 is an equidigital number, since it uses as much as digits as its factorization.

2543031445457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1151213967 (or 1151213920 counting only the distinct ones).

The product of its (nonzero) digits is 4032000, while the sum is 47.

The spelling of 2543031445457 in words is "two trillion, five hundred forty-three billion, thirty-one million, four hundred forty-five thousand, four hundred fifty-seven".