43729913036 has 24 divisors (see below), whose sum is σ = 79778133120. Its totient is φ = 20950128000.

The previous prime is 43729913033. The next prime is 43729913069. The reversal of 43729913036 is 63031992734.

It is a super-2 number, since 2×43729913036² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43729913033) 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, 1733321 + ... + 1758368.

It is an arithmetic number, because the mean of its divisors is an integer number (3324088880).

Almost surely, 2^43729913036 is an apocalyptic number.

It is an amenable number.

43729913036 is a deficient number, since it is larger than the sum of its proper divisors (36048220084).

43729913036 is a wasteful number, since it uses less digits than its factorization.

43729913036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3491825 (or 3491823 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 47.

The spelling of 43729913036 in words is "forty-three billion, seven hundred twenty-nine million, nine hundred thirteen thousand, thirty-six".