39990111001000 has 128 divisors (see below), whose sum is σ = 95946238402560. Its totient is φ = 15591730752000.

The previous prime is 39990111000967. The next prime is 39990111001019. The reversal of 39990111001000 is 10011109993.

39990111001000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44780857 + ... + 45665143.

It is an arithmetic number, because the mean of its divisors is an integer number (749579987520).

Almost surely, 2^{39990111001000} 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 39990111001000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47973119201280).

39990111001000 is an abundant number, since it is smaller than the sum of its proper divisors (55956127401560).

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

39990111001000 is a wasteful number, since it uses less digits than its factorization.

39990111001000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885452 (or 885438 counting only the distinct ones).

The product of its (nonzero) digits is 2187, while the sum is 34.

The spelling of 39990111001000 in words is "thirty-nine trillion, nine hundred ninety billion, one hundred eleven million, one thousand".