38917663960 has 96 divisors (see below), whose sum is σ = 101944919520. Its totient is φ = 13332211200.

The previous prime is 38917663921. The next prime is 38917663987. The reversal of 38917663960 is 6936671983.

38917663960 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 38917663895 and 38917663904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2581645 + ... + 2596675.

It is an arithmetic number, because the mean of its divisors is an integer number (1061926245).

Almost surely, 2^38917663960 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 38917663960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50972459760).

38917663960 is an abundant number, since it is smaller than the sum of its proper divisors (63027255560).

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

38917663960 is a wasteful number, since it uses less digits than its factorization.

38917663960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16377 (or 16366 counting only the distinct ones).

The product of its (nonzero) digits is 8817984, while the sum is 58.

The spelling of 38917663960 in words is "thirty-eight billion, nine hundred seventeen million, six hundred sixty-three thousand, nine hundred sixty".