146681323859 has 4 divisors (see below), whose sum is σ = 167635798704. Its totient is φ = 125726849016.

The previous prime is 146681323829. The next prime is 146681323889. The reversal of 146681323859 is 958323186641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 958323186641 = 71 ⋅13497509671.

It is an interprime number because it is at equal distance from previous prime (146681323829) and next prime (146681323889).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146681323859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146681323829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10477237412 + ... + 10477237425.

It is an arithmetic number, because the mean of its divisors is an integer number (41908949676).

Almost surely, 2^146681323859 is an apocalyptic number.

146681323859 is a deficient number, since it is larger than the sum of its proper divisors (20954474845).

146681323859 is an equidigital number, since it uses as much as digits as its factorization.

146681323859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20954474844.

The product of its digits is 7464960, while the sum is 56.

The spelling of 146681323859 in words is "one hundred forty-six billion, six hundred eighty-one million, three hundred twenty-three thousand, eight hundred fifty-nine".