172240455782 has 16 divisors (see below), whose sum is σ = 259827100272. Its totient is φ = 85632614400.

The previous prime is 172240455733. The next prime is 172240455791. The reversal of 172240455782 is 287554042271.

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, 8219 + ... + 586982.

It is an arithmetic number, because the mean of its divisors is an integer number (16239193767).

Almost surely, 2^172240455782 is an apocalyptic number.

172240455782 is a deficient number, since it is larger than the sum of its proper divisors (87586644490).

172240455782 is a wasteful number, since it uses less digits than its factorization.

172240455782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596023.

The product of its (nonzero) digits is 1254400, while the sum is 47.

The spelling of 172240455782 in words is "one hundred seventy-two billion, two hundred forty million, four hundred fifty-five thousand, seven hundred eighty-two".