12486078642546 has 48 divisors (see below), whose sum is σ = 27564229031040. Its totient is φ = 4083405349920.

The previous prime is 12486078642529. The next prime is 12486078642547. The reversal of 12486078642546 is 64524687068421.

It is a happy number.

12486078642546 is a `hidden beast` number, since 1 + 2 + 4 + 8 + 6 + 0 + 7 + 86 + 4 + 2 + 546 = 666.

It is not an unprimeable number, because it can be changed into a prime (12486078642547) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51749575 + ... + 51990293.

It is an arithmetic number, because the mean of its divisors is an integer number (574254771480).

Almost surely, 2^{12486078642546} is an apocalyptic number.

12486078642546 is an abundant number, since it is smaller than the sum of its proper divisors (15078150388494).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12486078642546 is a wasteful number, since it uses less digits than its factorization.

12486078642546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295151 (or 295148 counting only the distinct ones).

The product of its (nonzero) digits is 123863040, while the sum is 63.

The spelling of 12486078642546 in words is "twelve trillion, four hundred eighty-six billion, seventy-eight million, six hundred forty-two thousand, five hundred forty-six".