67090841969 has 2 divisors, whose sum is σ = 67090841970. Its totient is φ = 67090841968.

The previous prime is 67090841933. The next prime is 67090842029. The reversal of 67090841969 is 96914809076.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52298201344 + 14792640625 = 228688^2 + 121625^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67090841969 is a prime.

It is a super-2 number, since 2×67090841969² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (67090841269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33545420984 + 33545420985.

It is an arithmetic number, because the mean of its divisors is an integer number (33545420985).

Almost surely, 2^67090841969 is an apocalyptic number.

It is an amenable number.

67090841969 is a deficient number, since it is larger than the sum of its proper divisors (1).

67090841969 is an equidigital number, since it uses as much as digits as its factorization.

67090841969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5878656, while the sum is 59.

The spelling of 67090841969 in words is "sixty-seven billion, ninety million, eight hundred forty-one thousand, nine hundred sixty-nine".