13706786394 has 48 divisors (see below), whose sum is σ = 33950367360. Its totient is φ = 3915099360.

The previous prime is 13706786393. The next prime is 13706786399. The reversal of 13706786394 is 49368760731.

It is a self number, because there is not a number n which added to its sum of digits gives 13706786394.

It is not an unprimeable number, because it can be changed into a prime (13706786393) 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, 488979 + ... + 516249.

It is an arithmetic number, because the mean of its divisors is an integer number (707299320).

Almost surely, 2^13706786394 is an apocalyptic number.

13706786394 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13706786394 is an abundant number, since it is smaller than the sum of its proper divisors (20243580966).

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

13706786394 is a wasteful number, since it uses less digits than its factorization.

13706786394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31275 (or 31272 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 54.

The spelling of 13706786394 in words is "thirteen billion, seven hundred six million, seven hundred eighty-six thousand, three hundred ninety-four".