12685110163438 has 16 divisors (see below), whose sum is σ = 19206017696304. Its totient is φ = 6283107498240.

The previous prime is 12685110163373. The next prime is 12685110163469. The reversal of 12685110163438 is 83436101158621.

It is a junction number, because it is equal to n+sod(n) for n = 12685110163391 and 12685110163400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7243348 + ... + 8822488.

It is an arithmetic number, because the mean of its divisors is an integer number (1200376106019).

Almost surely, 2^{12685110163438} is an apocalyptic number.

12685110163438 is a deficient number, since it is larger than the sum of its proper divisors (6520907532866).

12685110163438 is a wasteful number, since it uses less digits than its factorization.

12685110163438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616787.

The product of its (nonzero) digits is 829440, while the sum is 49.

The spelling of 12685110163438 in words is "twelve trillion, six hundred eighty-five billion, one hundred ten million, one hundred sixty-three thousand, four hundred thirty-eight".