13890154752 has 90 divisors (see below), whose sum is σ = 41417989998. Its totient is φ = 4630044672.

The previous prime is 13890154741. The next prime is 13890154813. The reversal of 13890154752 is 25745109831.

13890154752 is a `hidden beast` number, since 13 + 8 + 90 + 1 + 547 + 5 + 2 = 666.

13890154752 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 13571318016 + 318836736 = 116496^2 + 17856^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13890154698 and 13890154707.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 314193 + ... + 355664.

Almost surely, 2^13890154752 is an apocalyptic number.

13890154752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13890154752 is an abundant number, since it is smaller than the sum of its proper divisors (27527835246).

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

13890154752 is an frugal number, since it uses more digits than its factorization.

13890154752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669885 (or 669862 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The spelling of 13890154752 in words is "thirteen billion, eight hundred ninety million, one hundred fifty-four thousand, seven hundred fifty-two".