12078461402535 has 32 divisors (see below), whose sum is σ = 21082685868288. Its totient is φ = 5856145790720.

The previous prime is 12078461402531. The next prime is 12078461402569. The reversal of 12078461402535 is 53520416487021.

It is not a de Polignac number, because 12078461402535 - 2² = 12078461402531 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12078461402531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13096084 + ... + 13988006.

It is an arithmetic number, because the mean of its divisors is an integer number (658833933384).

Almost surely, 2^{12078461402535} is an apocalyptic number.

12078461402535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12078461402535 is a deficient number, since it is larger than the sum of its proper divisors (9004224465753).

12078461402535 is a wasteful number, since it uses less digits than its factorization.

12078461402535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974015.

The product of its (nonzero) digits is 1612800, while the sum is 48.

Adding to 12078461402535 its reverse (53520416487021), we get a palindrome (65598877889556).

The spelling of 12078461402535 in words is "twelve trillion, seventy-eight billion, four hundred sixty-one million, four hundred two thousand, five hundred thirty-five".