12646078770074 has 32 divisors (see below), whose sum is σ = 19689249343104. Its totient is φ = 6087272304960.

The previous prime is 12646078770049. The next prime is 12646078770079. The reversal of 12646078770074 is 47007787064621.

It is a junction number, because it is equal to n+sod(n) for n = 12646078769995 and 12646078770022.

It is not an unprimeable number, because it can be changed into a prime (12646078770079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21279392 + ... + 21865604.

It is an arithmetic number, because the mean of its divisors is an integer number (615289041972).

Almost surely, 2^{12646078770074} is an apocalyptic number.

12646078770074 is a deficient number, since it is larger than the sum of its proper divisors (7043170573030).

12646078770074 is a wasteful number, since it uses less digits than its factorization.

12646078770074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589862.

The product of its (nonzero) digits is 22127616, while the sum is 59.

The spelling of 12646078770074 in words is "twelve trillion, six hundred forty-six billion, seventy-eight million, seven hundred seventy thousand, seventy-four".