43140986887 has 4 divisors (see below), whose sum is σ = 45678692016. Its totient is φ = 40603281760.

The previous prime is 43140986813. The next prime is 43140986927. The reversal of 43140986887 is 78868904134.

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-43140986887 is a prime.

It is a super-2 number, since 2×43140986887² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43140986687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1268852539 + ... + 1268852572.

It is an arithmetic number, because the mean of its divisors is an integer number (11419673004).

Almost surely, 2^43140986887 is an apocalyptic number.

43140986887 is a deficient number, since it is larger than the sum of its proper divisors (2537705129).

43140986887 is a wasteful number, since it uses less digits than its factorization.

43140986887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2537705128.

The product of its (nonzero) digits is 9289728, while the sum is 58.

The spelling of 43140986887 in words is "forty-three billion, one hundred forty million, nine hundred eighty-six thousand, eight hundred eighty-seven".