39995475490000 has 100 divisors (see below), whose sum is σ = 97482935553300. Its totient is φ = 15890819200000.

The previous prime is 39995475489997. The next prime is 39995475490031. The reversal of 39995475490000 is 9457459993.

It is a happy number.

It can be written as a sum of positive squares in 10 ways, for example, as 25085312658576 + 14910162831424 = 5008524^2 + 3861368^2 .

It is a tau number, because it is divible by the number of its divisors (100).

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 19 ways as a sum of consecutive naturals, for example, 11931301 + ... + 14911300.

It is an arithmetic number, because the mean of its divisors is an integer number (974829355533).

Almost surely, 2^{39995475490000} is an apocalyptic number.

It is an amenable number.

39995475490000 is an abundant number, since it is smaller than the sum of its proper divisors (57487460063300).

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

39995475490000 is a wasteful number, since it uses less digits than its factorization.

39995475490000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26842778 (or 26842757 counting only the distinct ones).

The product of its (nonzero) digits is 55112400, while the sum is 64.

The spelling of 39995475490000 in words is "thirty-nine trillion, nine hundred ninety-five billion, four hundred seventy-five million, four hundred ninety thousand".