13545557624042 has 16 divisors (see below), whose sum is σ = 20423936582280. Its totient is φ = 6737579876352.

The previous prime is 13545557624029. The next prime is 13545557624077. The reversal of 13545557624042 is 24042675554531.

It is a Cunningham number, because it is equal to 3680429²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 13545557624041 + 1 = 3680429^2 + 1^2 .

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 7 ways as a sum of consecutive naturals, for example, 27755834 + ... + 28239642.

Almost surely, 2^{13545557624042} is an apocalyptic number.

13545557624042 is a deficient number, since it is larger than the sum of its proper divisors (6878378958238).

13545557624042 is a wasteful number, since it uses less digits than its factorization.

13545557624042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556537.

The product of its (nonzero) digits is 20160000, while the sum is 53.

The spelling of 13545557624042 in words is "thirteen trillion, five hundred forty-five billion, five hundred fifty-seven million, six hundred twenty-four thousand, forty-two".