193404389425 has 12 divisors (see below), whose sum is σ = 258269246620. Its totient is φ = 142821702720.

The previous prime is 193404389417. The next prime is 193404389449. The reversal of 193404389425 is 524983404391.

It can be written as a sum of positive squares in 6 ways, for example, as 61850197809 + 131554191616 = 248697^2 + 362704^2 .

It is not a de Polignac number, because 193404389425 - 2³ = 193404389417 is a prime.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 297544890 + ... + 297545539.

Almost surely, 2^193404389425 is an apocalyptic number.

It is an amenable number.

193404389425 is a deficient number, since it is larger than the sum of its proper divisors (64864857195).

193404389425 is a wasteful number, since it uses less digits than its factorization.

193404389425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595090452 (or 595090447 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 52.

The spelling of 193404389425 in words is "one hundred ninety-three billion, four hundred four million, three hundred eighty-nine thousand, four hundred twenty-five".