4642838657 has 2 divisors, whose sum is σ = 4642838658. Its totient is φ = 4642838656.

The previous prime is 4642838639. The next prime is 4642838747. The reversal of 4642838657 is 7568382464.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4445688976 + 197149681 = 66676^2 + 14041^2 .

It is a cyclic number.

It is not a de Polignac number, because 4642838657 - 2²⁰ = 4641790081 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4642838599 and 4642838608.

It is not a weakly prime, because it can be changed into another prime (4642838257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2321419328 + 2321419329.

It is an arithmetic number, because the mean of its divisors is an integer number (2321419329).

Almost surely, 2^4642838657 is an apocalyptic number.

It is an amenable number.

4642838657 is a deficient number, since it is larger than the sum of its proper divisors (1).

4642838657 is an equidigital number, since it uses as much as digits as its factorization.

4642838657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7741440, while the sum is 53.

The square root of 4642838657 is about 68138.3787376835. The cubic root of 4642838657 is about 1668.2502448427.

The spelling of 4642838657 in words is "four billion, six hundred forty-two million, eight hundred thirty-eight thousand, six hundred fifty-seven".