69441890949091 has 2 divisors, whose sum is σ = 69441890949092. Its totient is φ = 69441890949090.

The previous prime is 69441890949059. The next prime is 69441890949163. The reversal of 69441890949091 is 19094909814496.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 69441890949091 - 2⁵ = 69441890949059 is a prime.

It is not a weakly prime, because it can be changed into another prime (69441890941091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34720945474545 + 34720945474546.

It is an arithmetic number, because the mean of its divisors is an integer number (34720945474546).

Almost surely, 2^{69441890949091} is an apocalyptic number.

69441890949091 is a deficient number, since it is larger than the sum of its proper divisors (1).

69441890949091 is an equidigital number, since it uses as much as digits as its factorization.

69441890949091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181398528, while the sum is 73.

The spelling of 69441890949091 in words is "sixty-nine trillion, four hundred forty-one billion, eight hundred ninety million, nine hundred forty-nine thousand, ninety-one".