143681364489 has 8 divisors (see below), whose sum is σ = 206311702912. Its totient is φ = 88419301200.

The previous prime is 143681364401. The next prime is 143681364517. The reversal of 143681364489 is 984463186341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 143681364489 - 2⁹ = 143681363977 is a prime.

It is a super-2 number, since 2×143681364489² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (143681360489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1842068737 + ... + 1842068814.

It is an arithmetic number, because the mean of its divisors is an integer number (25788962864).

Almost surely, 2^143681364489 is an apocalyptic number.

It is an amenable number.

143681364489 is a deficient number, since it is larger than the sum of its proper divisors (62630338423).

143681364489 is a wasteful number, since it uses less digits than its factorization.

143681364489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3684137567.

The product of its digits is 11943936, while the sum is 57.

The spelling of 143681364489 in words is "one hundred forty-three billion, six hundred eighty-one million, three hundred sixty-four thousand, four hundred eighty-nine".