5721131418 has 16 divisors (see below), whose sum is σ = 11456108640. Its totient is φ = 1904736176.

The previous prime is 5721131413. The next prime is 5721131443. The reversal of 5721131418 is 8141311275.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5721131413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 571533 + ... + 581456.

It is an arithmetic number, because the mean of its divisors is an integer number (716006790).

Almost surely, 2^5721131418 is an apocalyptic number.

5721131418 is an abundant number, since it is smaller than the sum of its proper divisors (5734977222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5721131418 is a wasteful number, since it uses less digits than its factorization.

5721131418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153821.

The product of its digits is 6720, while the sum is 33.

The square root of 5721131418 is about 75638.1611225445. The cubic root of 5721131418 is about 1788.5207151414.

The spelling of 5721131418 in words is "five billion, seven hundred twenty-one million, one hundred thirty-one thousand, four hundred eighteen".