5451821716 has 24 divisors (see below), whose sum is σ = 10430836416. Its totient is φ = 2472669120.

The previous prime is 5451821707. The next prime is 5451821719. The reversal of 5451821716 is 6171281545.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5451821719) 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, 115456 + ... + 155671.

It is an arithmetic number, because the mean of its divisors is an integer number (434618184).

Almost surely, 2^5451821716 is an apocalyptic number.

It is an amenable number.

5451821716 is a deficient number, since it is larger than the sum of its proper divisors (4979014700).

5451821716 is a wasteful number, since it uses less digits than its factorization.

5451821716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271599 (or 271597 counting only the distinct ones).

The product of its digits is 67200, while the sum is 40.

The square root of 5451821716 is about 73836.4524879141. The cubic root of 5451821716 is about 1760.0049194938.

The spelling of 5451821716 in words is "five billion, four hundred fifty-one million, eight hundred twenty-one thousand, seven hundred sixteen".