38637040439 has 8 divisors (see below), whose sum is σ = 39377221632. Its totient is φ = 37897273440.

The previous prime is 38637040397. The next prime is 38637040447. The reversal of 38637040439 is 93404073683.

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 38637040439 - 2²⁴ = 38620263223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38637040393 and 38637040402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38637045439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88169 + ... + 291629.

It is an arithmetic number, because the mean of its divisors is an integer number (4922152704).

Almost surely, 2^38637040439 is an apocalyptic number.

38637040439 is a deficient number, since it is larger than the sum of its proper divisors (740181193).

38637040439 is a wasteful number, since it uses less digits than its factorization.

38637040439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207097.

The product of its (nonzero) digits is 1306368, while the sum is 47.

The spelling of 38637040439 in words is "thirty-eight billion, six hundred thirty-seven million, forty thousand, four hundred thirty-nine".