5864921561 has 2 divisors, whose sum is σ = 5864921562. Its totient is φ = 5864921560.

The previous prime is 5864921551. The next prime is 5864921591. The reversal of 5864921561 is 1651294685.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4282393600 + 1582527961 = 65440^2 + 39781^2 .

It is a cyclic number.

It is not a de Polignac number, because 5864921561 - 2⁶ = 5864921497 is a prime.

It is not a weakly prime, because it can be changed into another prime (5864921551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2932460780 + 2932460781.

It is an arithmetic number, because the mean of its divisors is an integer number (2932460781).

Almost surely, 2^5864921561 is an apocalyptic number.

It is an amenable number.

5864921561 is a deficient number, since it is larger than the sum of its proper divisors (1).

5864921561 is an equidigital number, since it uses as much as digits as its factorization.

5864921561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 518400, while the sum is 47.

The square root of 5864921561 is about 76582.7758768249. The cubic root of 5864921561 is about 1803.3806386100.

The spelling of 5864921561 in words is "five billion, eight hundred sixty-four million, nine hundred twenty-one thousand, five hundred sixty-one".