69713849940491 has 2 divisors, whose sum is σ = 69713849940492. Its totient is φ = 69713849940490.

The previous prime is 69713849940479. The next prime is 69713849940529. The reversal of 69713849940491 is 19404994831796.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69713849940491 is a prime.

It is not a weakly prime, because it can be changed into another prime (69713849940421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34856924970245 + 34856924970246.

It is an arithmetic number, because the mean of its divisors is an integer number (34856924970246).

Almost surely, 2^{69713849940491} is an apocalyptic number.

69713849940491 is a deficient number, since it is larger than the sum of its proper divisors (1).

69713849940491 is an equidigital number, since it uses as much as digits as its factorization.

69713849940491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 423263232, while the sum is 74.

The spelling of 69713849940491 in words is "sixty-nine trillion, seven hundred thirteen billion, eight hundred forty-nine million, nine hundred forty thousand, four hundred ninety-one".