38678880643831 has 8 divisors (see below), whose sum is σ = 39432892611024. Its totient is φ = 37925765779200.

The previous prime is 38678880643829. The next prime is 38678880643853. The reversal of 38678880643831 is 13834608887683.

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

It is not a de Polignac number, because 38678880643831 - 2¹ = 38678880643829 is a prime.

It is a super-2 number, since 2×38678880643831² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38678880643531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224188570 + ... + 224361031.

It is an arithmetic number, because the mean of its divisors is an integer number (4929111576378).

Almost surely, 2^{38678880643831} is an apocalyptic number.

38678880643831 is a deficient number, since it is larger than the sum of its proper divisors (754011967193).

38678880643831 is a wasteful number, since it uses less digits than its factorization.

38678880643831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448551281.

The product of its (nonzero) digits is 891813888, while the sum is 73.

The spelling of 38678880643831 in words is "thirty-eight trillion, six hundred seventy-eight billion, eight hundred eighty million, six hundred forty-three thousand, eight hundred thirty-one".