13642442061012 has 36 divisors (see below), whose sum is σ = 34485456203380. Its totient is φ = 4547428687872.

The previous prime is 13642442060981. The next prime is 13642442061047. The reversal of 13642442061012 is 21016024424631.

13642442061012 is a `hidden beast` number, since 1 + 3 + 6 + 4 + 2 + 4 + 4 + 20 + 610 + 12 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6695032050576 + 6947410010436 = 2587476^2 + 2635794^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×13642442061012² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1092564 + ... + 5336532.

Almost surely, 2^{13642442061012} is an apocalyptic number.

13642442061012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13642442061012 is an abundant number, since it is smaller than the sum of its proper divisors (20843014142368).

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

13642442061012 is a wasteful number, since it uses less digits than its factorization.

13642442061012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4333272 (or 4333267 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

Adding to 13642442061012 its reverse (21016024424631), we get a palindrome (34658466485643).

The spelling of 13642442061012 in words is "thirteen trillion, six hundred forty-two billion, four hundred forty-two million, sixty-one thousand, twelve".