8144061387542 has 16 divisors (see below), whose sum is σ = 12446950548960. Its totient is φ = 3995082391872.

The previous prime is 8144061387533. The next prime is 8144061387563. The reversal of 8144061387542 is 2457831604418.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2546138 + ... + 4771890.

It is an arithmetic number, because the mean of its divisors is an integer number (777934409310).

Almost surely, 2^{8144061387542} is an apocalyptic number.

8144061387542 is a deficient number, since it is larger than the sum of its proper divisors (4302889161418).

8144061387542 is a wasteful number, since it uses less digits than its factorization.

8144061387542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2260327.

The product of its (nonzero) digits is 5160960, while the sum is 53.

The spelling of 8144061387542 in words is "eight trillion, one hundred forty-four billion, sixty-one million, three hundred eighty-seven thousand, five hundred forty-two".