5104081821 has 8 divisors (see below), whose sum is σ = 6820206624. Its totient is φ = 3395339120.

The previous prime is 5104081789. The next prime is 5104081847. The reversal of 5104081821 is 1281804015.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5104081821 - 2⁵ = 5104081789 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5104081861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1843911 + ... + 1846676.

It is an arithmetic number, because the mean of its divisors is an integer number (852525828).

Almost surely, 2^5104081821 is an apocalyptic number.

It is an amenable number.

5104081821 is a deficient number, since it is larger than the sum of its proper divisors (1716124803).

5104081821 is a wasteful number, since it uses less digits than its factorization.

5104081821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3691051.

The product of its (nonzero) digits is 2560, while the sum is 30.

The square root of 5104081821 is about 71442.8570327363. The cubic root of 5104081821 is about 1721.7597166353.

Adding to 5104081821 its reverse (1281804015), we get a palindrome (6385885836).

The spelling of 5104081821 in words is "five billion, one hundred four million, eighty-one thousand, eight hundred twenty-one".