172836190073 has 4 divisors (see below), whose sum is σ = 172837550208. Its totient is φ = 172834829940.

The previous prime is 172836190031. The next prime is 172836190081. The reversal of 172836190073 is 370091638271.

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, and also an emirpimes, since its reverse is a distinct semiprime: 370091638271 = 1103 ⋅335531857.

It is a cyclic number.

It is not a de Polignac number, because 172836190073 - 2¹⁰ = 172836189049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (172836190273) 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, 467261 + ... + 751002.

It is an arithmetic number, because the mean of its divisors is an integer number (43209387552).

Almost surely, 2^172836190073 is an apocalyptic number.

It is an amenable number.

172836190073 is a deficient number, since it is larger than the sum of its proper divisors (1360135).

172836190073 is a wasteful number, since it uses less digits than its factorization.

172836190073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360134.

The product of its (nonzero) digits is 381024, while the sum is 47.

The spelling of 172836190073 in words is "one hundred seventy-two billion, eight hundred thirty-six million, one hundred ninety thousand, seventy-three".