4642688457 has 48 divisors (see below), whose sum is σ = 7926355008. Its totient is φ = 2586608640.

The previous prime is 4642688441. The next prime is 4642688461. The reversal of 4642688457 is 7548862464.

It is a happy number.

It is not a de Polignac number, because 4642688457 - 2⁴ = 4642688441 is a prime.

It is a super-3 number, since 3×4642688457³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (4642688417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40293 + ... + 104445.

It is an arithmetic number, because the mean of its divisors is an integer number (165132396).

Almost surely, 2^4642688457 is an apocalyptic number.

It is an amenable number.

4642688457 is a deficient number, since it is larger than the sum of its proper divisors (3283666551).

4642688457 is a wasteful number, since it uses less digits than its factorization.

4642688457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64230 (or 64227 counting only the distinct ones).

The product of its digits is 10321920, while the sum is 54.

The square root of 4642688457 is about 68137.2765598978. The cubic root of 4642688457 is about 1668.2322548508.

The spelling of 4642688457 in words is "four billion, six hundred forty-two million, six hundred eighty-eight thousand, four hundred fifty-seven".