43061747729 has 48 divisors (see below), whose sum is σ = 59121239040. Its totient is φ = 30447967680.

The previous prime is 43061747693. The next prime is 43061747741. The reversal of 43061747729 is 92774716034.

It is a happy number.

It is not a de Polignac number, because 43061747729 - 2²⁸ = 42793312273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43061747749) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 739724 + ... + 795810.

It is an arithmetic number, because the mean of its divisors is an integer number (1231692480).

Almost surely, 2^43061747729 is an apocalyptic number.

It is an amenable number.

43061747729 is a deficient number, since it is larger than the sum of its proper divisors (16059491311).

43061747729 is a wasteful number, since it uses less digits than its factorization.

43061747729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56190 (or 56177 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 50.

The spelling of 43061747729 in words is "forty-three billion, sixty-one million, seven hundred forty-seven thousand, seven hundred twenty-nine".