4688257457 has 8 divisors (see below), whose sum is σ = 5185349736. Its totient is φ = 4210659072.

The previous prime is 4688257439. The next prime is 4688257459. The reversal of 4688257457 is 7547528864.

It can be written as a sum of positive squares in 4 ways, for example, as 1603121521 + 3085135936 = 40039^2 + 55544^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4688257457 is a prime.

It is a super-2 number, since 2×4688257457² = 43959515966232213698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4688257459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4872968 + ... + 4873929.

It is an arithmetic number, because the mean of its divisors is an integer number (648168717).

Almost surely, 2^4688257457 is an apocalyptic number.

It is an amenable number.

4688257457 is a deficient number, since it is larger than the sum of its proper divisors (497092279).

4688257457 is a wasteful number, since it uses less digits than its factorization.

4688257457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9746947.

The product of its digits is 15052800, while the sum is 56.

The square root of 4688257457 is about 68470.8511484997. The cubic root of 4688257457 is about 1673.6725155368.

The spelling of 4688257457 in words is "four billion, six hundred eighty-eight million, two hundred fifty-seven thousand, four hundred fifty-seven".