13895279620020 has 72 divisors (see below), whose sum is σ = 42151411588104. Its totient is φ = 3705197196288.

The previous prime is 13895279620009. The next prime is 13895279620087. The reversal of 13895279620020 is 2002697259831.

13895279620020 is a `hidden beast` number, since 1 + 3 + 8 + 9 + 5 + 2 + 7 + 9 + 620 + 0 + 2 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1402433851536 + 12492845768484 = 1184244^2 + 3534522^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 992272 + ... + 5364248.

It is an arithmetic number, because the mean of its divisors is an integer number (585436272057).

Almost surely, 2^{13895279620020} is an apocalyptic number.

13895279620020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13895279620020 is an abundant number, since it is smaller than the sum of its proper divisors (28256131968084).

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

13895279620020 is a wasteful number, since it uses less digits than its factorization.

13895279620020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4389649 (or 4389644 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 13895279620020 in words is "thirteen trillion, eight hundred ninety-five billion, two hundred seventy-nine million, six hundred twenty thousand, twenty".