4918511657 has 2 divisors, whose sum is σ = 4918511658. Its totient is φ = 4918511656.

The previous prime is 4918511641. The next prime is 4918511707. The reversal of 4918511657 is 7561158194.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4282917136 + 635594521 = 65444^2 + 25211^2 .

It is a cyclic number.

It is not a de Polignac number, because 4918511657 - 2⁴ = 4918511641 is a prime.

It is not a weakly prime, because it can be changed into another prime (4918511617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2459255828 + 2459255829.

It is an arithmetic number, because the mean of its divisors is an integer number (2459255829).

Almost surely, 2^4918511657 is an apocalyptic number.

It is an amenable number.

4918511657 is a deficient number, since it is larger than the sum of its proper divisors (1).

4918511657 is an equidigital number, since it uses as much as digits as its factorization.

4918511657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 47.

The square root of 4918511657 is about 70132.1014728633. The cubic root of 4918511657 is about 1700.6354783387.

The spelling of 4918511657 in words is "four billion, nine hundred eighteen million, five hundred eleven thousand, six hundred fifty-seven".