193420320939 has 12 divisors (see below), whose sum is σ = 279840682576. Its totient is φ = 128736523152.

The previous prime is 193420320889. The next prime is 193420320941. The reversal of 193420320939 is 939023024391.

193420320939 is a `hidden beast` number, since 19 + 3 + 420 + 3 + 209 + 3 + 9 = 666.

It is not a de Polignac number, because 193420320939 - 2¹¹ = 193420318891 is a prime.

It is a super-2 number, since 2×193420320939² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 193420320894 and 193420320903.

It is not an unprimeable number, because it can be changed into a prime (193420320839) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17523967 + ... + 17535000.

Almost surely, 2^193420320939 is an apocalyptic number.

193420320939 is a deficient number, since it is larger than the sum of its proper divisors (86420361637).

193420320939 is a wasteful number, since it uses less digits than its factorization.

193420320939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35059586 (or 35059583 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 45.

The spelling of 193420320939 in words is "one hundred ninety-three billion, four hundred twenty million, three hundred twenty thousand, nine hundred thirty-nine".