38846961636 has 96 divisors (see below), whose sum is σ = 108233545728. Its totient is φ = 10603042560.

The previous prime is 38846961619. The next prime is 38846961709. The reversal of 38846961636 is 63616964883.

It is a self number, because there is not a number n which added to its sum of digits gives 38846961636.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1554456 + ... + 1579248.

It is an arithmetic number, because the mean of its divisors is an integer number (1127432768).

Almost surely, 2^38846961636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38846961636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54116772864).

38846961636 is an abundant number, since it is smaller than the sum of its proper divisors (69386584092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38846961636 is a wasteful number, since it uses less digits than its factorization.

38846961636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25641 (or 25639 counting only the distinct ones).

The product of its digits is 26873856, while the sum is 60.

The spelling of 38846961636 in words is "thirty-eight billion, eight hundred forty-six million, nine hundred sixty-one thousand, six hundred thirty-six".