172840071406 has 8 divisors (see below), whose sum is σ = 259261888464. Its totient is φ = 86419441920.

The previous prime is 172840071401. The next prime is 172840071409. The reversal of 172840071406 is 604170048271.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172840071401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341511 + ... + 679933.

It is an arithmetic number, because the mean of its divisors is an integer number (32407736058).

Almost surely, 2^172840071406 is an apocalyptic number.

172840071406 is a deficient number, since it is larger than the sum of its proper divisors (86421817058).

172840071406 is a wasteful number, since it uses less digits than its factorization.

172840071406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593786.

The product of its (nonzero) digits is 75264, while the sum is 40.

The spelling of 172840071406 in words is "one hundred seventy-two billion, eight hundred forty million, seventy-one thousand, four hundred six".