4978506893 has 2 divisors, whose sum is σ = 4978506894. Its totient is φ = 4978506892.

The previous prime is 4978506811. The next prime is 4978506931. The reversal of 4978506893 is 3986058794.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3077808484 + 1900698409 = 55478^2 + 43597^2 .

It is a cyclic number.

It is not a de Polignac number, because 4978506893 - 2¹⁴ = 4978490509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4978706893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2489253446 + 2489253447.

It is an arithmetic number, because the mean of its divisors is an integer number (2489253447).

Almost surely, 2^4978506893 is an apocalyptic number.

It is an amenable number.

4978506893 is a deficient number, since it is larger than the sum of its proper divisors (1).

4978506893 is an equidigital number, since it uses as much as digits as its factorization.

4978506893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13063680, while the sum is 59.

The square root of 4978506893 is about 70558.5352243086. The cubic root of 4978506893 is about 1707.5222477374.

The spelling of 4978506893 in words is "four billion, nine hundred seventy-eight million, five hundred six thousand, eight hundred ninety-three".