43240561205136 has 40 divisors (see below), whose sum is σ = 111708352082880. Its totient is φ = 14413059889536.

The previous prime is 43240561205071. The next prime is 43240561205137. The reversal of 43240561205136 is 63150216504234.

It is a super-2 number, since 2×43240561205136² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43240561205137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12871356 + ... + 15879323.

It is an arithmetic number, because the mean of its divisors is an integer number (2792708802072).

Almost surely, 2^{43240561205136} is an apocalyptic number.

It is an amenable number.

43240561205136 is an abundant number, since it is smaller than the sum of its proper divisors (68467790877744).

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

43240561205136 is a wasteful number, since it uses less digits than its factorization.

43240561205136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28782023 (or 28782017 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 43240561205136 in words is "forty-three trillion, two hundred forty billion, five hundred sixty-one million, two hundred five thousand, one hundred thirty-six".