4997139943 has 2 divisors, whose sum is σ = 4997139944. Its totient is φ = 4997139942.

The previous prime is 4997139937. The next prime is 4997139967. The reversal of 4997139943 is 3499317994.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4997139943 - 2¹³ = 4997131751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4997131943) 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, 2498569971 + 2498569972.

It is an arithmetic number, because the mean of its divisors is an integer number (2498569972).

Almost surely, 2^4997139943 is an apocalyptic number.

4997139943 is a deficient number, since it is larger than the sum of its proper divisors (1).

4997139943 is an equidigital number, since it uses as much as digits as its factorization.

4997139943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6613488, while the sum is 58.

The square root of 4997139943 is about 70690.4515687939. The cubic root of 4997139943 is about 1709.6498425786.

The spelling of 4997139943 in words is "four billion, nine hundred ninety-seven million, one hundred thirty-nine thousand, nine hundred forty-three".