172474139008 has 16 divisors (see below), whose sum is σ = 343600824060. Its totient is φ = 86237069440.

The previous prime is 172474139003. The next prime is 172474139141. The reversal of 172474139008 is 800931474271.

It is a tau number, because it is divible by the number of its divisors (16).

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172474139003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 673726978 + ... + 673727233.

Almost surely, 2^172474139008 is an apocalyptic number.

It is an amenable number.

172474139008 is a deficient number, since it is larger than the sum of its proper divisors (171126685052).

172474139008 is an equidigital number, since it uses as much as digits as its factorization.

172474139008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347454225 (or 1347454213 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 46.

The spelling of 172474139008 in words is "one hundred seventy-two billion, four hundred seventy-four million, one hundred thirty-nine thousand, eight".