43140440515544 has 32 divisors (see below), whose sum is σ = 81336183037200. Its totient is φ = 21450794520960.

The previous prime is 43140440515541. The next prime is 43140440515589. The reversal of 43140440515544 is 44551504404134.

It is a super-2 number, since 2×43140440515544² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43140440515495 and 43140440515504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43140440515541) 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, 205738547 + ... + 205948125.

Almost surely, 2^{43140440515544} is an apocalyptic number.

It is an amenable number.

43140440515544 is a deficient number, since it is larger than the sum of its proper divisors (38195742521656).

43140440515544 is a wasteful number, since it uses less digits than its factorization.

43140440515544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351923 (or 351919 counting only the distinct ones).

The product of its (nonzero) digits is 1536000, while the sum is 44.

Adding to 43140440515544 its reverse (44551504404134), we get a palindrome (87691944919678).

The spelling of 43140440515544 in words is "forty-three trillion, one hundred forty billion, four hundred forty million, five hundred fifteen thousand, five hundred forty-four".