2867660364221 has 2 divisors, whose sum is σ = 2867660364222. Its totient is φ = 2867660364220.

The previous prime is 2867660364181. The next prime is 2867660364341. The reversal of 2867660364221 is 1224630667682.

2867660364221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2587754822500 + 279905541721 = 1608650^2 + 529061^2 .

It is a cyclic number.

It is not a de Polignac number, because 2867660364221 - 2¹⁴ = 2867660347837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2867660369221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1433830182110 + 1433830182111.

It is an arithmetic number, because the mean of its divisors is an integer number (1433830182111).

Almost surely, 2^{2867660364221} is an apocalyptic number.

It is an amenable number.

2867660364221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2867660364221 is an equidigital number, since it uses as much as digits as its factorization.

2867660364221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6967296, while the sum is 53.

The spelling of 2867660364221 in words is "two trillion, eight hundred sixty-seven billion, six hundred sixty million, three hundred sixty-four thousand, two hundred twenty-one".