12061863578078 has 16 divisors (see below), whose sum is σ = 19046091330000. Its totient is φ = 5713201253952.

The previous prime is 12061863578053. The next prime is 12061863578081. The reversal of 12061863578078 is 87087536816021.

It is a super-2 number, since 2×12061863578078² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12061863578078.

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, 7993103 + ... + 9381546.

It is an arithmetic number, because the mean of its divisors is an integer number (1190380708125).

Almost surely, 2^{12061863578078} is an apocalyptic number.

12061863578078 is a deficient number, since it is larger than the sum of its proper divisors (6984227751922).

12061863578078 is a wasteful number, since it uses less digits than its factorization.

12061863578078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17392939.

The product of its (nonzero) digits is 27095040, while the sum is 62.

The spelling of 12061863578078 in words is "twelve trillion, sixty-one billion, eight hundred sixty-three million, five hundred seventy-eight thousand, seventy-eight".