2766358458881 has 2 divisors, whose sum is σ = 2766358458882. Its totient is φ = 2766358458880.

The previous prime is 2766358458817. The next prime is 2766358458893. The reversal of 2766358458881 is 1888548536672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2543517815281 + 222840643600 = 1594841^2 + 472060^2 .

It is a cyclic number.

It is not a de Polignac number, because 2766358458881 - 2⁶ = 2766358458817 is a prime.

It is a super-2 number, since 2×2766358458881² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2766358458181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1383179229440 + 1383179229441.

It is an arithmetic number, because the mean of its divisors is an integer number (1383179229441).

Almost surely, 2^{2766358458881} is an apocalyptic number.

It is an amenable number.

2766358458881 is a deficient number, since it is larger than the sum of its proper divisors (1).

2766358458881 is an equidigital number, since it uses as much as digits as its factorization.

2766358458881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 619315200, while the sum is 71.

The spelling of 2766358458881 in words is "two trillion, seven hundred sixty-six billion, three hundred fifty-eight million, four hundred fifty-eight thousand, eight hundred eighty-one".