4920742657 has 2 divisors, whose sum is σ = 4920742658. Its totient is φ = 4920742656.

The previous prime is 4920742639. The next prime is 4920742661. The reversal of 4920742657 is 7562470294.

It is a happy number.

4920742657 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4025775601 + 894967056 = 63449^2 + 29916^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4920742657 is a prime.

It is not a weakly prime, because it can be changed into another prime (4920745657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2460371328 + 2460371329.

It is an arithmetic number, because the mean of its divisors is an integer number (2460371329).

Almost surely, 2^4920742657 is an apocalyptic number.

It is an amenable number.

4920742657 is a deficient number, since it is larger than the sum of its proper divisors (1).

4920742657 is an equidigital number, since it uses as much as digits as its factorization.

4920742657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 846720, while the sum is 46.

The square root of 4920742657 is about 70148.0053672234. The cubic root of 4920742657 is about 1700.8925713037.

The spelling of 4920742657 in words is "four billion, nine hundred twenty million, seven hundred forty-two thousand, six hundred fifty-seven".