2064867267481 has 2 divisors, whose sum is σ = 2064867267482. Its totient is φ = 2064867267480.

The previous prime is 2064867267347. The next prime is 2064867267511. The reversal of 2064867267481 is 1847627684602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1869397173081 + 195470094400 = 1367259^2 + 442120^2 .

It is a cyclic number.

It is not a de Polignac number, because 2064867267481 - 2¹³ = 2064867259289 is a prime.

It is a super-2 number, since 2×2064867267481² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2064867067481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1032433633740 + 1032433633741.

It is an arithmetic number, because the mean of its divisors is an integer number (1032433633741).

Almost surely, 2^{2064867267481} is an apocalyptic number.

It is an amenable number.

2064867267481 is a deficient number, since it is larger than the sum of its proper divisors (1).

2064867267481 is an equidigital number, since it uses as much as digits as its factorization.

2064867267481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43352064, while the sum is 61.

The spelling of 2064867267481 in words is "two trillion, sixty-four billion, eight hundred sixty-seven million, two hundred sixty-seven thousand, four hundred eighty-one".