143838843816 has 64 divisors (see below), whose sum is σ = 381286382400. Its totient is φ = 45091219968.

The previous prime is 143838843791. The next prime is 143838843823. The reversal of 143838843816 is 618348838341.

It is a super-2 number, since 2×143838843816² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1088755 + ... + 1213698.

It is an arithmetic number, because the mean of its divisors is an integer number (5957599725).

Almost surely, 2^143838843816 is an apocalyptic number.

It is an amenable number.

143838843816 is an abundant number, since it is smaller than the sum of its proper divisors (237447538584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143838843816 is a wasteful number, since it uses less digits than its factorization.

143838843816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2302618 (or 2302614 counting only the distinct ones).

The product of its digits is 10616832, while the sum is 57.

The spelling of 143838843816 in words is "one hundred forty-three billion, eight hundred thirty-eight million, eight hundred forty-three thousand, eight hundred sixteen".