193980163426 has 16 divisors (see below), whose sum is σ = 332941497984. Its totient is φ = 83033337024.

The previous prime is 193980163423. The next prime is 193980163439. The reversal of 193980163426 is 624361089391.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (193980163423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8406295 + ... + 8429338.

It is an arithmetic number, because the mean of its divisors is an integer number (20808843624).

Almost surely, 2^193980163426 is an apocalyptic number.

193980163426 is a deficient number, since it is larger than the sum of its proper divisors (138961334558).

193980163426 is a wasteful number, since it uses less digits than its factorization.

193980163426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16836465.

The product of its (nonzero) digits is 1679616, while the sum is 52.

The spelling of 193980163426 in words is "one hundred ninety-three billion, nine hundred eighty million, one hundred sixty-three thousand, four hundred twenty-six".