5481767821 has 8 divisors (see below), whose sum is σ = 5581265760. Its totient is φ = 5382489552.

The previous prime is 5481767807. The next prime is 5481767869. The reversal of 5481767821 is 1287671845.

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 5481767821 - 2¹³ = 5481759629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5481761821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4135 + ... + 104788.

It is an arithmetic number, because the mean of its divisors is an integer number (697658220).

Almost surely, 2^5481767821 is an apocalyptic number.

It is an amenable number.

5481767821 is a deficient number, since it is larger than the sum of its proper divisors (99497939).

5481767821 is a wasteful number, since it uses less digits than its factorization.

5481767821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109835.

The product of its digits is 752640, while the sum is 49.

The square root of 5481767821 is about 74038.9615067635. The cubic root of 5481767821 is about 1763.2215253246.

The spelling of 5481767821 in words is "five billion, four hundred eighty-one million, seven hundred sixty-seven thousand, eight hundred twenty-one".