38291638631 has 8 divisors (see below), whose sum is σ = 38525392800. Its totient is φ = 38058562080.

The previous prime is 38291638577. The next prime is 38291638639. The reversal of 38291638631 is 13683619283.

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 38291638631 - 2¹⁴ = 38291622247 is a prime.

It is a super-2 number, since 2×38291638631² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38291638631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38291638639) 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, 55811 + ... + 282308.

It is an arithmetic number, because the mean of its divisors is an integer number (4815674100).

Almost surely, 2^38291638631 is an apocalyptic number.

38291638631 is a deficient number, since it is larger than the sum of its proper divisors (233754169).

38291638631 is a wasteful number, since it uses less digits than its factorization.

38291638631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338809.

The product of its digits is 1119744, while the sum is 50.

The spelling of 38291638631 in words is "thirty-eight billion, two hundred ninety-one million, six hundred thirty-eight thousand, six hundred thirty-one".