39885521088 has 168 divisors, whose sum is σ = 127289551872. Its totient is φ = 10795949568.

The previous prime is 39885521087. The next prime is 39885521099. The reversal of 39885521088 is 88012558893.

It is a tau number, because it is divible by the number of its divisors (168).

It is a super-2 number, since 2×39885521088² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (39885521087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 444081 + ... + 526287.

It is an arithmetic number, because the mean of its divisors is an integer number (757675904).

Almost surely, 2^39885521088 is an apocalyptic number.

39885521088 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39885521088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63644775936).

39885521088 is an abundant number, since it is smaller than the sum of its proper divisors (87404030784).

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

39885521088 is a wasteful number, since it uses less digits than its factorization.

39885521088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82267 (or 82238 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 57.

The spelling of 39885521088 in words is "thirty-nine billion, eight hundred eighty-five million, five hundred twenty-one thousand, eighty-eight".