172827283949 has 4 divisors (see below), whose sum is σ = 172919264160. Its totient is φ = 172735303740.

The previous prime is 172827283931. The next prime is 172827283961. The reversal of 172827283949 is 949382728271.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 172827283949 - 2⁸ = 172827283693 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 172827283891 and 172827283900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172827283919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45987287 + ... + 45991044.

It is an arithmetic number, because the mean of its divisors is an integer number (43229816040).

Almost surely, 2^172827283949 is an apocalyptic number.

It is an amenable number.

172827283949 is a deficient number, since it is larger than the sum of its proper divisors (91980211).

172827283949 is an equidigital number, since it uses as much as digits as its factorization.

172827283949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91980210.

The product of its digits is 24385536, while the sum is 62.

The spelling of 172827283949 in words is "one hundred seventy-two billion, eight hundred twenty-seven million, two hundred eighty-three thousand, nine hundred forty-nine".