2667811506317 has 2 divisors, whose sum is σ = 2667811506318. Its totient is φ = 2667811506316.

The previous prime is 2667811506259. The next prime is 2667811506401. The reversal of 2667811506317 is 7136051187662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2452446828841 + 215364677476 = 1566029^2 + 464074^2 .

It is a cyclic number.

It is not a de Polignac number, because 2667811506317 - 2¹⁸ = 2667811244173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2667814506317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1333905753158 + 1333905753159.

It is an arithmetic number, because the mean of its divisors is an integer number (1333905753159).

Almost surely, 2^{2667811506317} is an apocalyptic number.

It is an amenable number.

2667811506317 is a deficient number, since it is larger than the sum of its proper divisors (1).

2667811506317 is an equidigital number, since it uses as much as digits as its factorization.

2667811506317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2540160, while the sum is 53.

The spelling of 2667811506317 in words is "two trillion, six hundred sixty-seven billion, eight hundred eleven million, five hundred six thousand, three hundred seventeen".