13878458178 has 16 divisors (see below), whose sum is σ = 29892063936. Its totient is φ = 4270294800.

The previous prime is 13878458159. The next prime is 13878458183. The reversal of 13878458178 is 87185487831.

It is a super-2 number, since 2×13878458178² (a number of 21 digits) contains 22 as substring.

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, 88964398 + ... + 88964553.

It is an arithmetic number, because the mean of its divisors is an integer number (1868253996).

Almost surely, 2^13878458178 is an apocalyptic number.

13878458178 is an abundant number, since it is smaller than the sum of its proper divisors (16013605758).

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

13878458178 is a wasteful number, since it uses less digits than its factorization.

13878458178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177928969.

The product of its digits is 12042240, while the sum is 60.

The spelling of 13878458178 in words is "thirteen billion, eight hundred seventy-eight million, four hundred fifty-eight thousand, one hundred seventy-eight".