38317438264 has 64 divisors (see below), whose sum is σ = 83844000000. Its totient is φ = 16410096864.

The previous prime is 38317438261. The next prime is 38317438297. The reversal of 38317438264 is 46283471383.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38317438261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4657947 + ... + 4666165.

It is an arithmetic number, because the mean of its divisors is an integer number (1310062500).

Almost surely, 2^38317438264 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 38317438264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41922000000).

38317438264 is an abundant number, since it is smaller than the sum of its proper divisors (45526561736).

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

38317438264 is a wasteful number, since it uses less digits than its factorization.

38317438264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9945 (or 9927 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 49.

The spelling of 38317438264 in words is "thirty-eight billion, three hundred seventeen million, four hundred thirty-eight thousand, two hundred sixty-four".