172017486890 has 32 divisors (see below), whose sum is σ = 323997981696. Its totient is φ = 65675249280.

The previous prime is 172017486877. The next prime is 172017486937. The reversal of 172017486890 is 98684710271.

It is a happy number.

172017486890 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3778022 + ... + 3823281.

It is an arithmetic number, because the mean of its divisors is an integer number (10124936928).

Almost surely, 2^172017486890 is an apocalyptic number.

172017486890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172017486890 is a deficient number, since it is larger than the sum of its proper divisors (151980494806).

172017486890 is a wasteful number, since it uses less digits than its factorization.

172017486890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7601414.

The product of its (nonzero) digits is 1354752, while the sum is 53.

The spelling of 172017486890 in words is "one hundred seventy-two billion, seventeen million, four hundred eighty-six thousand, eight hundred ninety".