642114473 has 24 divisors (see below), whose sum is σ = 877544640. Its totient is φ = 461855520.

The previous prime is 642114461. The next prime is 642114521. The reversal of 642114473 is 374411246.

642114473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 642114473 - 2²² = 637920169 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (642114073) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38813 + ... + 52826.

It is an arithmetic number, because the mean of its divisors is an integer number (36564360).

Almost surely, 2^642114473 is an apocalyptic number.

It is an amenable number.

642114473 is a deficient number, since it is larger than the sum of its proper divisors (235430167).

642114473 is a wasteful number, since it uses less digits than its factorization.

642114473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91677 (or 91670 counting only the distinct ones).

The product of its digits is 16128, while the sum is 32.

The square root of 642114473 is about 25339.9777624212. The cubic root of 642114473 is about 862.7218939835.

The spelling of 642114473 in words is "six hundred forty-two million, one hundred fourteen thousand, four hundred seventy-three".