146618839589 has 4 divisors (see below), whose sum is σ = 154335620640. Its totient is φ = 138902058540.

The previous prime is 146618839583. The next prime is 146618839639. The reversal of 146618839589 is 985938816641.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 985938816641 = 29 ⋅33997890229.

It is a de Polignac number, because none of the positive numbers 2^k-146618839589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146618839583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3858390497 + ... + 3858390534.

It is an arithmetic number, because the mean of its divisors is an integer number (38583905160).

Almost surely, 2^146618839589 is an apocalyptic number.

146618839589 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

146618839589 is a deficient number, since it is larger than the sum of its proper divisors (7716781051).

146618839589 is an equidigital number, since it uses as much as digits as its factorization.

146618839589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7716781050.

The product of its digits is 89579520, while the sum is 68.

The spelling of 146618839589 in words is "one hundred forty-six billion, six hundred eighteen million, eight hundred thirty-nine thousand, five hundred eighty-nine".