193425294681 has 24 divisors (see below), whose sum is σ = 296478101920. Its totient is φ = 125951347872.

The previous prime is 193425294661. The next prime is 193425294707. The reversal of 193425294681 is 186492524391.

It is a happy number.

193425294681 is a `hidden beast` number, since 1 + 9 + 34 + 2 + 529 + 4 + 6 + 81 = 666.

It is not a de Polignac number, because 193425294681 - 2⁶ = 193425294617 is a prime.

It is a super-2 number, since 2×193425294681² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (193425294661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9245236 + ... + 9266133.

Almost surely, 2^193425294681 is an apocalyptic number.

It is an amenable number.

193425294681 is a deficient number, since it is larger than the sum of its proper divisors (103052807239).

193425294681 is an equidigital number, since it uses as much as digits as its factorization.

193425294681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18511427 (or 18511415 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The spelling of 193425294681 in words is "one hundred ninety-three billion, four hundred twenty-five million, two hundred ninety-four thousand, six hundred eighty-one".