172340443547 has 8 divisors (see below), whose sum is σ = 173253664272. Its totient is φ = 171429350400.

The previous prime is 172340443529. The next prime is 172340443571. The reversal of 172340443547 is 745344043271.

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

It is a cyclic number.

It is not a de Polignac number, because 172340443547 - 2¹⁶ = 172340378011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 172340443498 and 172340443507.

It is not an unprimeable number, because it can be changed into a prime (172340443507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369329 + ... + 693602.

It is an arithmetic number, because the mean of its divisors is an integer number (21656708034).

Almost surely, 2^172340443547 is an apocalyptic number.

172340443547 is a deficient number, since it is larger than the sum of its proper divisors (913220725).

172340443547 is a wasteful number, since it uses less digits than its factorization.

172340443547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063789.

The product of its (nonzero) digits is 1128960, while the sum is 44.

The spelling of 172340443547 in words is "one hundred seventy-two billion, three hundred forty million, four hundred forty-three thousand, five hundred forty-seven".