457685706191 has 4 divisors (see below), whose sum is σ = 523069378512. Its totient is φ = 392302033872.

The previous prime is 457685706169. The next prime is 457685706193. The reversal of 457685706191 is 191607586754.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-457685706191 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 457685706191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457685706193) 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 3 ways as a sum of consecutive naturals, for example, 32691836150 + ... + 32691836163.

It is an arithmetic number, because the mean of its divisors is an integer number (130767344628).

Almost surely, 2^457685706191 is an apocalyptic number.

457685706191 is a deficient number, since it is larger than the sum of its proper divisors (65383672321).

457685706191 is an equidigital number, since it uses as much as digits as its factorization.

457685706191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65383672320.

The product of its (nonzero) digits is 12700800, while the sum is 59.

The spelling of 457685706191 in words is "four hundred fifty-seven billion, six hundred eighty-five million, seven hundred six thousand, one hundred ninety-one".