13705650378 has 48 divisors (see below), whose sum is σ = 33969361920. Its totient is φ = 3912258528.

The previous prime is 13705650377. The next prime is 13705650433. The reversal of 13705650378 is 87305650731.

13705650378 is a `hidden beast` number, since 1 + 3 + 70 + 5 + 6 + 503 + 78 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13705650377) 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, 86928 + ... + 186996.

It is an arithmetic number, because the mean of its divisors is an integer number (707695040).

Almost surely, 2^13705650378 is an apocalyptic number.

13705650378 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13705650378 is an abundant number, since it is smaller than the sum of its proper divisors (20263711542).

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

13705650378 is a wasteful number, since it uses less digits than its factorization.

13705650378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101171 (or 101168 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

The spelling of 13705650378 in words is "thirteen billion, seven hundred five million, six hundred fifty thousand, three hundred seventy-eight".