2257642380473 has 4 divisors (see below), whose sum is σ = 2390444873460. Its totient is φ = 2124839887488.

The previous prime is 2257642380467. The next prime is 2257642380479. The reversal of 2257642380473 is 3740832467522.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2257642380467) and next prime (2257642380479).

It can be written as a sum of positive squares in 2 ways, for example, as 2066670758464 + 190971622009 = 1437592^2 + 437003^2 .

It is a cyclic number.

It is not a de Polignac number, because 2257642380473 - 2⁴ = 2257642380457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2257642380479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66401246468 + ... + 66401246501.

It is an arithmetic number, because the mean of its divisors is an integer number (597611218365).

Almost surely, 2^{2257642380473} is an apocalyptic number.

It is an amenable number.

2257642380473 is a deficient number, since it is larger than the sum of its proper divisors (132802492987).

2257642380473 is a wasteful number, since it uses less digits than its factorization.

2257642380473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132802492986.

The product of its (nonzero) digits is 13547520, while the sum is 53.

The spelling of 2257642380473 in words is "two trillion, two hundred fifty-seven billion, six hundred forty-two million, three hundred eighty thousand, four hundred seventy-three".