43046221636 has 24 divisors (see below), whose sum is σ = 82185183360. Its totient is φ = 19565028000.

The previous prime is 43046221597. The next prime is 43046221693. The reversal of 43046221636 is 63612264034.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 43046221595 and 43046221604.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 777061 + ... + 830611.

It is an arithmetic number, because the mean of its divisors is an integer number (3424382640).

Almost surely, 2^43046221636 is an apocalyptic number.

It is an amenable number.

43046221636 is a deficient number, since it is larger than the sum of its proper divisors (39138961724).

43046221636 is a wasteful number, since it uses less digits than its factorization.

43046221636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71835 (or 71833 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 37.

The spelling of 43046221636 in words is "forty-three billion, forty-six million, two hundred twenty-one thousand, six hundred thirty-six".