146821581967 has 2 divisors, whose sum is σ = 146821581968. Its totient is φ = 146821581966.

The previous prime is 146821581947. The next prime is 146821582021. The reversal of 146821581967 is 769185128641.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146821581967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146821581917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73410790983 + 73410790984.

It is an arithmetic number, because the mean of its divisors is an integer number (73410790984).

Almost surely, 2^146821581967 is an apocalyptic number.

146821581967 is a deficient number, since it is larger than the sum of its proper divisors (1).

146821581967 is an equidigital number, since it uses as much as digits as its factorization.

146821581967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5806080, while the sum is 58.

The spelling of 146821581967 in words is "one hundred forty-six billion, eight hundred twenty-one million, five hundred eighty-one thousand, nine hundred sixty-seven".