854243222342457 has 16 divisors (see below), whose sum is σ = 1141481593405440. Its totient is φ = 568250232384912.

The previous prime is 854243222342413. The next prime is 854243222342467. The reversal of 854243222342457 is 754243222342458.

It is not a de Polignac number, because 854243222342457 - 2¹² = 854243222338361 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 854243222342397 and 854243222342406.

It is not an unprimeable number, because it can be changed into a prime (854243222342467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43692808 + ... + 60146054.

It is an arithmetic number, because the mean of its divisors is an integer number (71342599587840).

Almost surely, 2^{854243222342457} is an apocalyptic number.

It is an amenable number.

854243222342457 is a deficient number, since it is larger than the sum of its proper divisors (287238371062983).

854243222342457 is a wasteful number, since it uses less digits than its factorization.

854243222342457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16491092.

The product of its digits is 103219200, while the sum is 57.

Subtracting from 854243222342457 its reverse (754243222342458), we obtain a palindrome (99999999999999).

The spelling of 854243222342457 in words is "eight hundred fifty-four trillion, two hundred forty-three billion, two hundred twenty-two million, three hundred forty-two thousand, four hundred fifty-seven".