4920497639 has 2 divisors, whose sum is σ = 4920497640. Its totient is φ = 4920497638.

The previous prime is 4920497609. The next prime is 4920497671. The reversal of 4920497639 is 9367940294.

4920497639 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4920497639 - 2²⁸ = 4652062183 is a prime.

It is a super-2 number, since 2×4920497639² = 48422594030809148642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4920497609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2460248819 + 2460248820.

It is an arithmetic number, because the mean of its divisors is an integer number (2460248820).

Almost surely, 2^4920497639 is an apocalyptic number.

4920497639 is a deficient number, since it is larger than the sum of its proper divisors (1).

4920497639 is an equidigital number, since it uses as much as digits as its factorization.

4920497639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2939328, while the sum is 53.

The square root of 4920497639 is about 70146.2589095099. The cubic root of 4920497639 is about 1700.8643400493.

The spelling of 4920497639 in words is "four billion, nine hundred twenty million, four hundred ninety-seven thousand, six hundred thirty-nine".