43206139988 has 12 divisors (see below), whose sum is σ = 82484449152. Its totient is φ = 19639154520.

The previous prime is 43206139939. The next prime is 43206140041. The reversal of 43206139988 is 88993160234.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 490978820 + ... + 490978907.

It is an arithmetic number, because the mean of its divisors is an integer number (6873704096).

Almost surely, 2^43206139988 is an apocalyptic number.

It is an amenable number.

43206139988 is a deficient number, since it is larger than the sum of its proper divisors (39278309164).

43206139988 is a wasteful number, since it uses less digits than its factorization.

43206139988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981957742 (or 981957740 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 53.

The spelling of 43206139988 in words is "forty-three billion, two hundred six million, one hundred thirty-nine thousand, nine hundred eighty-eight".