5721126838 has 16 divisors (see below), whose sum is σ = 9809905824. Its totient is φ = 2451346560.

The previous prime is 5721126797. The next prime is 5721126847. The reversal of 5721126838 is 8386211275.

It is a junction number, because it is equal to n+sod(n) for n = 5721126794 and 5721126803.

It is a congruent number.

It is an unprimeable number.

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, 19056 + ... + 108652.

It is an arithmetic number, because the mean of its divisors is an integer number (613119114).

Almost surely, 2^5721126838 is an apocalyptic number.

5721126838 is a deficient number, since it is larger than the sum of its proper divisors (4088778986).

5721126838 is a wasteful number, since it uses less digits than its factorization.

5721126838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94167.

The product of its digits is 161280, while the sum is 43.

The square root of 5721126838 is about 75638.1308468156. The cubic root of 5721126838 is about 1788.5202378799.

The spelling of 5721126838 in words is "five billion, seven hundred twenty-one million, one hundred twenty-six thousand, eight hundred thirty-eight".