43742729239 has 24 divisors (see below), whose sum is σ = 51338238336. Its totient is φ = 37152469200.

The previous prime is 43742729227. The next prime is 43742729279. The reversal of 43742729239 is 93292724734.

It is not a de Polignac number, because 43742729239 - 2²⁹ = 43205858327 is a prime.

It is a super-2 number, since 2×43742729239² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43742729279) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63097 + ... + 302434.

It is an arithmetic number, because the mean of its divisors is an integer number (2139093264).

Almost surely, 2^43742729239 is an apocalyptic number.

43742729239 is a deficient number, since it is larger than the sum of its proper divisors (7595509097).

43742729239 is a wasteful number, since it uses less digits than its factorization.

43742729239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365619 (or 365608 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 52.

The spelling of 43742729239 in words is "forty-three billion, seven hundred forty-two million, seven hundred twenty-nine thousand, two hundred thirty-nine".