43140815688 has 64 divisors (see below), whose sum is σ = 108633208320. Its totient is φ = 14276390400.

The previous prime is 43140815681. The next prime is 43140815719. The reversal of 43140815688 is 88651804134.

It is a super-2 number, since 2×43140815688² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43140815681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2628628 + ... + 2644988.

It is an arithmetic number, because the mean of its divisors is an integer number (1697393880).

Almost surely, 2^43140815688 is an apocalyptic number.

It is an amenable number.

43140815688 is an abundant number, since it is smaller than the sum of its proper divisors (65492392632).

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

43140815688 is a wasteful number, since it uses less digits than its factorization.

43140815688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17158 (or 17154 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 48.

The spelling of 43140815688 in words is "forty-three billion, one hundred forty million, eight hundred fifteen thousand, six hundred eighty-eight".