38816889853940 has 96 divisors (see below), whose sum is σ = 89387417839104. Its totient is φ = 14042002472960.

The previous prime is 38816889853927. The next prime is 38816889853961. The reversal of 38816889853940 is 4935898861883.

It is a super-2 number, since 2×38816889853940² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 427156949 + ... + 427247811.

It is an arithmetic number, because the mean of its divisors is an integer number (931118935824).

Almost surely, 2^{38816889853940} 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 38816889853940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44693708919552).

38816889853940 is an abundant number, since it is smaller than the sum of its proper divisors (50570527985164).

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

38816889853940 is a wasteful number, since it uses less digits than its factorization.

38816889853940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100937 (or 100935 counting only the distinct ones).

The product of its (nonzero) digits is 2866544640, while the sum is 80.

The spelling of 38816889853940 in words is "thirty-eight trillion, eight hundred sixteen billion, eight hundred eighty-nine million, eight hundred fifty-three thousand, nine hundred forty".