4630240781 has 2 divisors, whose sum is σ = 4630240782. Its totient is φ = 4630240780.

The previous prime is 4630240723. The next prime is 4630240799. The reversal of 4630240781 is 1870420364.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4158960100 + 471280681 = 64490^2 + 21709^2 .

It is a cyclic number.

It is not a de Polignac number, because 4630240781 - 2²⁶ = 4563131917 is a prime.

It is a super-2 number, since 2×4630240781² = 42878259380070979922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4630242781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2315120390 + 2315120391.

It is an arithmetic number, because the mean of its divisors is an integer number (2315120391).

Almost surely, 2^4630240781 is an apocalyptic number.

It is an amenable number.

4630240781 is a deficient number, since it is larger than the sum of its proper divisors (1).

4630240781 is an equidigital number, since it uses as much as digits as its factorization.

4630240781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 4630240781 is about 68045.8726228123. The cubic root of 4630240781 is about 1666.7400016043.

The spelling of 4630240781 in words is "four billion, six hundred thirty million, two hundred forty thousand, seven hundred eighty-one".