172050719945 has 32 divisors (see below), whose sum is σ = 235620578592. Its totient is φ = 119477993472.

The previous prime is 172050719933. The next prime is 172050719977. The reversal of 172050719945 is 549917050271.

It can be written as a sum of positive squares in 16 ways, for example, as 24093558841 + 147957161104 = 155221^2 + 384652^2 .

It is a cyclic number.

It is not a de Polignac number, because 172050719945 - 2⁶ = 172050719881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 172050719893 and 172050719902.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1253009 + ... + 1383521.

It is an arithmetic number, because the mean of its divisors is an integer number (7363143081).

Almost surely, 2^172050719945 is an apocalyptic number.

It is an amenable number.

172050719945 is a deficient number, since it is larger than the sum of its proper divisors (63569858647).

172050719945 is a wasteful number, since it uses less digits than its factorization.

172050719945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131741.

The product of its (nonzero) digits is 793800, while the sum is 50.

The spelling of 172050719945 in words is "one hundred seventy-two billion, fifty million, seven hundred nineteen thousand, nine hundred forty-five".