2864717521 has 2 divisors, whose sum is σ = 2864717522. Its totient is φ = 2864717520.

The previous prime is 2864717507. The next prime is 2864717561. The reversal of 2864717521 is 1257174682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2839717521 + 25000000 = 53289^2 + 5000^2 .

It is a cyclic number.

It is not a de Polignac number, because 2864717521 - 2¹⁷ = 2864586449 is a prime.

It is not a weakly prime, because it can be changed into another prime (2864717501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1432358760 + 1432358761.

It is an arithmetic number, because the mean of its divisors is an integer number (1432358761).

Almost surely, 2^2864717521 is an apocalyptic number.

It is an amenable number.

2864717521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2864717521 is an equidigital number, since it uses as much as digits as its factorization.

2864717521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 188160, while the sum is 43.

The square root of 2864717521 is about 53523.0559759063. The cubic root of 2864717521 is about 1420.2362763945.

The spelling of 2864717521 in words is "two billion, eight hundred sixty-four million, seven hundred seventeen thousand, five hundred twenty-one".