43442135636 has 12 divisors (see below), whose sum is σ = 76604072160. Its totient is φ = 21555257880.

The previous prime is 43442135623. The next prime is 43442135647. The reversal of 43442135636 is 63653124434.

It is a super-2 number, since 2×43442135636² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43442135593 and 43442135602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41451896 + ... + 41452943.

It is an arithmetic number, because the mean of its divisors is an integer number (6383672680).

Almost surely, 2^43442135636 is an apocalyptic number.

It is an amenable number.

43442135636 is a deficient number, since it is larger than the sum of its proper divisors (33161936524).

43442135636 is a wasteful number, since it uses less digits than its factorization.

43442135636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82904974 (or 82904972 counting only the distinct ones).

The product of its digits is 622080, while the sum is 41.

The spelling of 43442135636 in words is "forty-three billion, four hundred forty-two million, one hundred thirty-five thousand, six hundred thirty-six".