13243542155404 has 24 divisors (see below), whose sum is σ = 25415498336256. Its totient is φ = 5988274650000.

The previous prime is 13243542155353. The next prime is 13243542155471. The reversal of 13243542155404 is 40455124534231.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 787922472 + ... + 787939279.

It is an arithmetic number, because the mean of its divisors is an integer number (1058979097344).

Almost surely, 2^{13243542155404} is an apocalyptic number.

It is an amenable number.

13243542155404 is a deficient number, since it is larger than the sum of its proper divisors (12171956180852).

13243542155404 is a wasteful number, since it uses less digits than its factorization.

13243542155404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575861957 (or 1575861955 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 43.

Adding to 13243542155404 its reverse (40455124534231), we get a palindrome (53698666689635).

The spelling of 13243542155404 in words is "thirteen trillion, two hundred forty-three billion, five hundred forty-two million, one hundred fifty-five thousand, four hundred four".