725430619171 has 4 divisors (see below), whose sum is σ = 768103008552. Its totient is φ = 682758229792.

The previous prime is 725430619153. The next prime is 725430619181. The reversal of 725430619171 is 171916034527.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 171916034527 = 4423 ⋅38868649.

It is a cyclic number.

It is not a de Polignac number, because 725430619171 - 2¹¹ = 725430617123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (725430619181) 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 3 ways as a sum of consecutive naturals, for example, 21336194665 + ... + 21336194698.

It is an arithmetic number, because the mean of its divisors is an integer number (192025752138).

Almost surely, 2^725430619171 is an apocalyptic number.

725430619171 is a deficient number, since it is larger than the sum of its proper divisors (42672389381).

725430619171 is a wasteful number, since it uses less digits than its factorization.

725430619171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42672389380.

The product of its (nonzero) digits is 317520, while the sum is 46.

The spelling of 725430619171 in words is "seven hundred twenty-five billion, four hundred thirty million, six hundred nineteen thousand, one hundred seventy-one".