172440329398 has 8 divisors (see below), whose sum is σ = 269906602608. Its totient is φ = 82471461864.

The previous prime is 172440329393. The next prime is 172440329419. The reversal of 172440329398 is 893923044271.

172440329398 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172440329393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1874351361 + ... + 1874351452.

It is an arithmetic number, because the mean of its divisors is an integer number (33738325326).

Almost surely, 2^172440329398 is an apocalyptic number.

172440329398 is a deficient number, since it is larger than the sum of its proper divisors (97466273210).

172440329398 is a wasteful number, since it uses less digits than its factorization.

172440329398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3748702838.

The product of its (nonzero) digits is 2612736, while the sum is 52.

The spelling of 172440329398 in words is "one hundred seventy-two billion, four hundred forty million, three hundred twenty-nine thousand, three hundred ninety-eight".