5681384777 has 8 divisors (see below), whose sum is σ = 5822624640. Its totient is φ = 5541878160.

The previous prime is 5681384759. The next prime is 5681384791. The reversal of 5681384777 is 7774831865.

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 5681384777 - 2¹⁰ = 5681383753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5681384707) 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, 426674 + ... + 439787.

It is an arithmetic number, because the mean of its divisors is an integer number (727828080).

Almost surely, 2^5681384777 is an apocalyptic number.

It is an amenable number.

5681384777 is a deficient number, since it is larger than the sum of its proper divisors (141239863).

5681384777 is an equidigital number, since it uses as much as digits as its factorization.

5681384777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866623.

The product of its digits is 7902720, while the sum is 56.

The square root of 5681384777 is about 75374.9612072869. The cubic root of 5681384777 is about 1784.3692663364.

The spelling of 5681384777 in words is "five billion, six hundred eighty-one million, three hundred eighty-four thousand, seven hundred seventy-seven".