39399131437 has 8 divisors (see below), whose sum is σ = 39742012800. Its totient is φ = 39057051744.

The previous prime is 39399131423. The next prime is 39399131503. The reversal of 39399131437 is 73413199393.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 39399131437 - 2³¹ = 37251647789 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 (39399191437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101487 + ... + 298492.

It is an arithmetic number, because the mean of its divisors is an integer number (4967751600).

Almost surely, 2^39399131437 is an apocalyptic number.

It is an amenable number.

39399131437 is a deficient number, since it is larger than the sum of its proper divisors (342881363).

39399131437 is a wasteful number, since it uses less digits than its factorization.

39399131437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400835.

The product of its digits is 1653372, while the sum is 52.

The spelling of 39399131437 in words is "thirty-nine billion, three hundred ninety-nine million, one hundred thirty-one thousand, four hundred thirty-seven".