2069845586491 has 2 divisors, whose sum is σ = 2069845586492. Its totient is φ = 2069845586490.

The previous prime is 2069845586449. The next prime is 2069845586507. The reversal of 2069845586491 is 1946855489602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2069845586491 - 2¹⁵ = 2069845553723 is a prime.

It is not a weakly prime, because it can be changed into another prime (2069845586411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1034922793245 + 1034922793246.

It is an arithmetic number, because the mean of its divisors is an integer number (1034922793246).

Almost surely, 2^{2069845586491} is an apocalyptic number.

2069845586491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2069845586491 is an equidigital number, since it uses as much as digits as its factorization.

2069845586491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 149299200, while the sum is 67.

The spelling of 2069845586491 in words is "two trillion, sixty-nine billion, eight hundred forty-five million, five hundred eighty-six thousand, four hundred ninety-one".