5721136779 has 8 divisors (see below), whose sum is σ = 7650819280. Its totient is φ = 3802772736.

The previous prime is 5721136709. The next prime is 5721136789. The reversal of 5721136779 is 9776311275.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5721136779 - 2⁷ = 5721136651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5721136709) 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, 2828434 + ... + 2830455.

It is an arithmetic number, because the mean of its divisors is an integer number (956352410).

Almost surely, 2^5721136779 is an apocalyptic number.

5721136779 is a deficient number, since it is larger than the sum of its proper divisors (1929682501).

5721136779 is a wasteful number, since it uses less digits than its factorization.

5721136779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5659229.

The product of its digits is 555660, while the sum is 48.

The square root of 5721136779 is about 75638.1965609969. The cubic root of 5721136779 is about 1788.5212737871.

The spelling of 5721136779 in words is "five billion, seven hundred twenty-one million, one hundred thirty-six thousand, seven hundred seventy-nine".