13154140404538 has 64 divisors (see below), whose sum is σ = 23162521789440. Its totient is φ = 5485388211072.

The previous prime is 13154140404469. The next prime is 13154140404539. The reversal of 13154140404538 is 83540404145131.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a junction number, because it is equal to n+sod(n) for n = 13154140404494 and 13154140404503.

It is not an unprimeable number, because it can be changed into a prime (13154140404539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 170256945 + ... + 170334187.

It is an arithmetic number, because the mean of its divisors is an integer number (361914402960).

Almost surely, 2^{13154140404538} is an apocalyptic number.

13154140404538 is a deficient number, since it is larger than the sum of its proper divisors (10008381384902).

13154140404538 is a wasteful number, since it uses less digits than its factorization.

13154140404538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78371.

The product of its (nonzero) digits is 460800, while the sum is 43.

Adding to 13154140404538 its reverse (83540404145131), we get a palindrome (96694544549669).

The spelling of 13154140404538 in words is "thirteen trillion, one hundred fifty-four billion, one hundred forty million, four hundred four thousand, five hundred thirty-eight".