4973485991 has 2 divisors, whose sum is σ = 4973485992. Its totient is φ = 4973485990.

The previous prime is 4973485969. The next prime is 4973486003. The reversal of 4973485991 is 1995843794.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4973485991 - 2¹⁸ = 4973223847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4973485991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4973485931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2486742995 + 2486742996.

It is an arithmetic number, because the mean of its divisors is an integer number (2486742996).

Almost surely, 2^4973485991 is an apocalyptic number.

4973485991 is a deficient number, since it is larger than the sum of its proper divisors (1).

4973485991 is an equidigital number, since it uses as much as digits as its factorization.

4973485991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9797760, while the sum is 59.

The square root of 4973485991 is about 70522.9465564223. The cubic root of 4973485991 is about 1706.9480337028.

The spelling of 4973485991 in words is "four billion, nine hundred seventy-three million, four hundred eighty-five thousand, nine hundred ninety-one".