39801317248 has 128 divisors (see below), whose sum is σ = 99838448640. Its totient is φ = 15353088000.

The previous prime is 39801317221. The next prime is 39801317267. The reversal of 39801317248 is 84271310893.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 39801317198 and 39801317207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 975465 + ... + 1015447.

It is an arithmetic number, because the mean of its divisors is an integer number (779987880).

Almost surely, 2^39801317248 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 39801317248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49919224320).

39801317248 is an abundant number, since it is smaller than the sum of its proper divisors (60037131392).

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

39801317248 is a wasteful number, since it uses less digits than its factorization.

39801317248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40116 (or 40104 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 39801317248 in words is "thirty-nine billion, eight hundred one million, three hundred seventeen thousand, two hundred forty-eight".