4445101993 has 2 divisors, whose sum is σ = 4445101994. Its totient is φ = 4445101992.

The previous prime is 4445101943. The next prime is 4445102009. The reversal of 4445101993 is 3991015444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4263175849 + 181926144 = 65293^2 + 13488^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4445101993 is a prime.

It is not a weakly prime, because it can be changed into another prime (4445101943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2222550996 + 2222550997.

It is an arithmetic number, because the mean of its divisors is an integer number (2222550997).

Almost surely, 2^4445101993 is an apocalyptic number.

It is an amenable number.

4445101993 is a deficient number, since it is larger than the sum of its proper divisors (1).

4445101993 is an equidigital number, since it uses as much as digits as its factorization.

4445101993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 4445101993 is about 66671.5980984407. The cubic root of 4445101993 is about 1644.2224615980. Note that the first 3 decimals are identical.

The spelling of 4445101993 in words is "four billion, four hundred forty-five million, one hundred one thousand, nine hundred ninety-three".