172303673321440 has 48 divisors (see below), whose sum is σ = 407158967440512. Its totient is φ = 68905970625024.

The previous prime is 172303673321413. The next prime is 172303673321453. The reversal of 172303673321440 is 44123376303271.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120369879 + ... + 121792918.

It is an arithmetic number, because the mean of its divisors is an integer number (8482478488344).

Almost surely, 2^{172303673321440} is an apocalyptic number.

172303673321440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172303673321440 is an abundant number, since it is smaller than the sum of its proper divisors (234855294119072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172303673321440 is a wasteful number, since it uses less digits than its factorization.

172303673321440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242167259 (or 242167251 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 46.

The spelling of 172303673321440 in words is "one hundred seventy-two trillion, three hundred three billion, six hundred seventy-three million, three hundred twenty-one thousand, four hundred forty".