38763916640 has 96 divisors (see below), whose sum is σ = 96988389120. Its totient is φ = 14609954304.

The previous prime is 38763916589. The next prime is 38763916643. The reversal of 38763916640 is 4661936783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38763916643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167951 + ... + 325169.

It is an arithmetic number, because the mean of its divisors is an integer number (1010295720).

Almost surely, 2^38763916640 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 38763916640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48494194560).

38763916640 is an abundant number, since it is smaller than the sum of its proper divisors (58224472480).

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

38763916640 is a wasteful number, since it uses less digits than its factorization.

38763916640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157324 (or 157316 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 53.

The spelling of 38763916640 in words is "thirty-eight billion, seven hundred sixty-three million, nine hundred sixteen thousand, six hundred forty".