5721319738 has 4 divisors (see below), whose sum is σ = 8581979610. Its totient is φ = 2860659868.

The previous prime is 5721319717. The next prime is 5721319753. The reversal of 5721319738 is 8379131275.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3100596489 + 2620723249 = 55683^2 + 51193^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1430329933 + ... + 1430329936.

Almost surely, 2^5721319738 is an apocalyptic number.

5721319738 is a deficient number, since it is larger than the sum of its proper divisors (2860659872).

5721319738 is a wasteful number, since it uses less digits than its factorization.

5721319738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2860659871.

The product of its digits is 317520, while the sum is 46.

The square root of 5721319738 is about 75639.4059865623. The cubic root of 5721319738 is about 1788.5403389128.

The spelling of 5721319738 in words is "five billion, seven hundred twenty-one million, three hundred nineteen thousand, seven hundred thirty-eight".