172215948983 has 16 divisors (see below), whose sum is σ = 191716358400. Its totient is φ = 153623312640.

The previous prime is 172215948977. The next prime is 172215949043. The reversal of 172215948983 is 389849512271.

It is a cyclic number.

It is not a de Polignac number, because 172215948983 - 2³⁴ = 155036079799 is a prime.

It is a super-3 number, since 3×172215948983³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172215948943) 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, 15638 + ... + 587091.

It is an arithmetic number, because the mean of its divisors is an integer number (11982272400).

Almost surely, 2^172215948983 is an apocalyptic number.

172215948983 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

172215948983 is a deficient number, since it is larger than the sum of its proper divisors (19500409417).

172215948983 is a wasteful number, since it uses less digits than its factorization.

172215948983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603482.

The product of its digits is 8709120, while the sum is 59.

The spelling of 172215948983 in words is "one hundred seventy-two billion, two hundred fifteen million, nine hundred forty-eight thousand, nine hundred eighty-three".