172936019690 has 32 divisors (see below), whose sum is σ = 355786245504. Its totient is φ = 59286991680.

The previous prime is 172936019653. The next prime is 172936019693. The reversal of 172936019690 is 96910639271.

It is a happy number.

172936019690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×172936019690² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (172936019693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 711605 + ... + 923175.

It is an arithmetic number, because the mean of its divisors is an integer number (11118320172).

Almost surely, 2^172936019690 is an apocalyptic number.

172936019690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172936019690 is an abundant number, since it is smaller than the sum of its proper divisors (182850225814).

172936019690 is a wasteful number, since it uses less digits than its factorization.

172936019690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223262.

The product of its (nonzero) digits is 1102248, while the sum is 53.

The spelling of 172936019690 in words is "one hundred seventy-two billion, nine hundred thirty-six million, nineteen thousand, six hundred ninety".