172646271193 has 16 divisors (see below), whose sum is σ = 193174315776. Its totient is φ = 152952384640.

The previous prime is 172646271181. The next prime is 172646271197. The reversal of 172646271193 is 391172646271.

It is a de Polignac number, because none of the positive numbers 2^k-172646271193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172646271197) 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, 596146 + ... + 837067.

It is an arithmetic number, because the mean of its divisors is an integer number (12073394736).

Almost surely, 2^172646271193 is an apocalyptic number.

It is an amenable number.

172646271193 is a deficient number, since it is larger than the sum of its proper divisors (20528044583).

172646271193 is a wasteful number, since it uses less digits than its factorization.

172646271193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1433504.

The product of its digits is 762048, while the sum is 49.

The spelling of 172646271193 in words is "one hundred seventy-two billion, six hundred forty-six million, two hundred seventy-one thousand, one hundred ninety-three".