39142429727 has 4 divisors (see below), whose sum is σ = 39142839840. Its totient is φ = 39142019616.

The previous prime is 39142429673. The next prime is 39142429747. The reversal of 39142429727 is 72792424193.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 72792424193 = 76757 ⋅948349.

It is a cyclic number.

It is not a de Polignac number, because 39142429727 - 2⁸ = 39142429471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39142429747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21674 + ... + 280632.

It is an arithmetic number, because the mean of its divisors is an integer number (9785709960).

Almost surely, 2^39142429727 is an apocalyptic number.

39142429727 is a deficient number, since it is larger than the sum of its proper divisors (410113).

39142429727 is a wasteful number, since it uses less digits than its factorization.

39142429727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410112.

The product of its digits is 1524096, while the sum is 50.

The spelling of 39142429727 in words is "thirty-nine billion, one hundred forty-two million, four hundred twenty-nine thousand, seven hundred twenty-seven".