172126574018 has 16 divisors (see below), whose sum is σ = 295278082944. Its totient is φ = 73717542720.

The previous prime is 172126573967. The next prime is 172126574033. The reversal of 172126574018 is 810475621271.

It is a self number, because there is not a number n which added to its sum of digits gives 172126574018.

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, 4228103 + ... + 4268618.

It is an arithmetic number, because the mean of its divisors is an integer number (18454880184).

Almost surely, 2^172126574018 is an apocalyptic number.

172126574018 is a deficient number, since it is larger than the sum of its proper divisors (123151508926).

172126574018 is a wasteful number, since it uses less digits than its factorization.

172126574018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8498177.

The product of its (nonzero) digits is 188160, while the sum is 44.

The spelling of 172126574018 in words is "one hundred seventy-two billion, one hundred twenty-six million, five hundred seventy-four thousand, eighteen".