5163735821 has 4 divisors (see below), whose sum is σ = 5170522044. Its totient is φ = 5156949600.

The previous prime is 5163735817. The next prime is 5163735833. The reversal of 5163735821 is 1285373615.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 721513321 + 4442222500 = 26861^2 + 66650^2 .

It is a cyclic number.

It is not a de Polignac number, because 5163735821 - 2² = 5163735817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5163735851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3391970 + ... + 3393491.

It is an arithmetic number, because the mean of its divisors is an integer number (1292630511).

Almost surely, 2^5163735821 is an apocalyptic number.

It is an amenable number.

5163735821 is a deficient number, since it is larger than the sum of its proper divisors (6786223).

5163735821 is an equidigital number, since it uses as much as digits as its factorization.

5163735821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6786222.

The product of its digits is 151200, while the sum is 41.

The square root of 5163735821 is about 71859.1387437951. The cubic root of 5163735821 is about 1728.4414467370.

The spelling of 5163735821 in words is "five billion, one hundred sixty-three million, seven hundred thirty-five thousand, eight hundred twenty-one".