43206140015 has 4 divisors (see below), whose sum is σ = 51847368024. Its totient is φ = 34564912008.

The previous prime is 43206139939. The next prime is 43206140041. The reversal of 43206140015 is 51004160234.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43206140015 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4320613997 + ... + 4320614006.

It is an arithmetic number, because the mean of its divisors is an integer number (12961842006).

Almost surely, 2^43206140015 is an apocalyptic number.

43206140015 is a deficient number, since it is larger than the sum of its proper divisors (8641228009).

43206140015 is an equidigital number, since it uses as much as digits as its factorization.

43206140015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8641228008.

The product of its (nonzero) digits is 2880, while the sum is 26.

The spelling of 43206140015 in words is "forty-three billion, two hundred six million, one hundred forty thousand, fifteen".