5778292721 has 2 divisors, whose sum is σ = 5778292722. Its totient is φ = 5778292720.

The previous prime is 5778292699. The next prime is 5778292739. The reversal of 5778292721 is 1272928775.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4958272225 + 820020496 = 70415^2 + 28636^2 .

It is a cyclic number.

It is not a de Polignac number, because 5778292721 - 2¹⁰ = 5778291697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5778292721.

It is not a weakly prime, because it can be changed into another prime (5778292321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2889146360 + 2889146361.

It is an arithmetic number, because the mean of its divisors is an integer number (2889146361).

Almost surely, 2^5778292721 is an apocalyptic number.

It is an amenable number.

5778292721 is a deficient number, since it is larger than the sum of its proper divisors (1).

5778292721 is an equidigital number, since it uses as much as digits as its factorization.

5778292721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 987840, while the sum is 50.

The square root of 5778292721 is about 76015.0821942593. The cubic root of 5778292721 is about 1794.4575110772.

The spelling of 5778292721 in words is "five billion, seven hundred seventy-eight million, two hundred ninety-two thousand, seven hundred twenty-one".