8572803364261 has 2 divisors, whose sum is σ = 8572803364262. Its totient is φ = 8572803364260.

The previous prime is 8572803364193. The next prime is 8572803364289. The reversal of 8572803364261 is 1624633082758.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8572803364225 + 36 = 2927935^2 + 6^2 .

It is a cyclic number.

It is not a de Polignac number, because 8572803364261 - 2⁹ = 8572803363749 is a prime.

It is a super-2 number, since 2×8572803364261² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8572803364361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4286401682130 + 4286401682131.

It is an arithmetic number, because the mean of its divisors is an integer number (4286401682131).

Almost surely, 2^{8572803364261} is an apocalyptic number.

It is an amenable number.

8572803364261 is a deficient number, since it is larger than the sum of its proper divisors (1).

8572803364261 is an equidigital number, since it uses as much as digits as its factorization.

8572803364261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11612160, while the sum is 55.

The spelling of 8572803364261 in words is "eight trillion, five hundred seventy-two billion, eight hundred three million, three hundred sixty-four thousand, two hundred sixty-one".