146968965809 has 2 divisors, whose sum is σ = 146968965810. Its totient is φ = 146968965808.

The previous prime is 146968965799. The next prime is 146968965841. The reversal of 146968965809 is 908569869641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125437805584 + 21531160225 = 354172^2 + 146735^2 .

It is a cyclic number.

It is not a de Polignac number, because 146968965809 - 2⁸ = 146968965553 is a prime.

It is a super-2 number, since 2×146968965809² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (146968985809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73484482904 + 73484482905.

It is an arithmetic number, because the mean of its divisors is an integer number (73484482905).

Almost surely, 2^146968965809 is an apocalyptic number.

It is an amenable number.

146968965809 is a deficient number, since it is larger than the sum of its proper divisors (1).

146968965809 is an equidigital number, since it uses as much as digits as its factorization.

146968965809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 201553920, while the sum is 71.

The spelling of 146968965809 in words is "one hundred forty-six billion, nine hundred sixty-eight million, nine hundred sixty-five thousand, eight hundred nine".