143642929689 has 24 divisors (see below), whose sum is σ = 247547908320. Its totient is φ = 82081673352.

The previous prime is 143642929673. The next prime is 143642929699. The reversal of 143642929689 is 986929246341.

143642929689 is a `hidden beast` number, since 1 + 43 + 6 + 429 + 2 + 96 + 89 = 666.

It is not a de Polignac number, because 143642929689 - 2⁴ = 143642929673 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (143642929699) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54285499 + ... + 54288144.

It is an arithmetic number, because the mean of its divisors is an integer number (10314496180).

Almost surely, 2^143642929689 is an apocalyptic number.

It is an amenable number.

143642929689 is a deficient number, since it is larger than the sum of its proper divisors (103904978631).

143642929689 is a wasteful number, since it uses less digits than its factorization.

143642929689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108573666 (or 108573653 counting only the distinct ones).

The product of its digits is 40310784, while the sum is 63.

The spelling of 143642929689 in words is "one hundred forty-three billion, six hundred forty-two million, nine hundred twenty-nine thousand, six hundred eighty-nine".