39541881340 has 96 divisors (see below), whose sum is σ = 94780143360. Its totient is φ = 13727563776.

The previous prime is 39541881307. The next prime is 39541881367. The reversal of 39541881340 is 4318814593.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5092381 + ... + 5100139.

It is an arithmetic number, because the mean of its divisors is an integer number (987293160).

Almost surely, 2^39541881340 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 39541881340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47390071680).

39541881340 is an abundant number, since it is smaller than the sum of its proper divisors (55238262020).

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

39541881340 is a wasteful number, since it uses less digits than its factorization.

39541881340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8951 (or 8949 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 39541881340 in words is "thirty-nine billion, five hundred forty-one million, eight hundred eighty-one thousand, three hundred forty".