43137881137 has 8 divisors (see below), whose sum is σ = 46506743360. Its totient is φ = 39776242320.

The previous prime is 43137881117. The next prime is 43137881207. The reversal of 43137881137 is 73118873134.

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

It is a cyclic number.

It is not a de Polignac number, because 43137881137 - 2⁷ = 43137881009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43137881117) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1793439 + ... + 1817332.

It is an arithmetic number, because the mean of its divisors is an integer number (5813342920).

Almost surely, 2^43137881137 is an apocalyptic number.

It is an amenable number.

43137881137 is a deficient number, since it is larger than the sum of its proper divisors (3368862223).

43137881137 is a wasteful number, since it uses less digits than its factorization.

43137881137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3611703.

The product of its digits is 338688, while the sum is 46.

The spelling of 43137881137 in words is "forty-three billion, one hundred thirty-seven million, eight hundred eighty-one thousand, one hundred thirty-seven".