173138064994540 has 48 divisors (see below), whose sum is σ = 384874672200480. Its totient is φ = 65312065566720.

The previous prime is 173138064994537. The next prime is 173138064994547. The reversal of 173138064994540 is 45499460831371.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (173138064994547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3471066981 + ... + 3471116860.

It is an arithmetic number, because the mean of its divisors is an integer number (8018222337510).

Almost surely, 2^{173138064994540} is an apocalyptic number.

173138064994540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

173138064994540 is an abundant number, since it is smaller than the sum of its proper divisors (211736607205940).

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

173138064994540 is a wasteful number, since it uses less digits than its factorization.

173138064994540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6942183922 (or 6942183920 counting only the distinct ones).

The product of its (nonzero) digits is 78382080, while the sum is 64.

The spelling of 173138064994540 in words is "one hundred seventy-three trillion, one hundred thirty-eight billion, sixty-four million, nine hundred ninety-four thousand, five hundred forty".