13861414638 has 12 divisors (see below), whose sum is σ = 30033065088. Its totient is φ = 4620471540.

The previous prime is 13861414631. The next prime is 13861414649. The reversal of 13861414638 is 83641416831.

13861414638 is a `hidden beast` number, since 1 + 3 + 8 + 6 + 1 + 4 + 1 + 4 + 638 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 13861414593 and 13861414602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13861414631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 385039278 + ... + 385039313.

It is an arithmetic number, because the mean of its divisors is an integer number (2502755424).

Almost surely, 2^13861414638 is an apocalyptic number.

13861414638 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13861414638 is an abundant number, since it is smaller than the sum of its proper divisors (16171650450).

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

13861414638 is a wasteful number, since it uses less digits than its factorization.

13861414638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770078599 (or 770078596 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The spelling of 13861414638 in words is "thirteen billion, eight hundred sixty-one million, four hundred fourteen thousand, six hundred thirty-eight".