172873542031251 has 8 divisors (see below), whose sum is σ = 242629532675520. Its totient is φ = 109183289703912.

The previous prime is 172873542031241. The next prime is 172873542031361. The reversal of 172873542031251 is 152130245378271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 172873542031251 - 2⁶ = 172873542031187 is a prime.

It is a super-2 number, since 2×172873542031251² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 172873542031194 and 172873542031203.

It is not an unprimeable number, because it can be changed into a prime (172873542031231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1516434579165 + ... + 1516434579278.

It is an arithmetic number, because the mean of its divisors is an integer number (30328691584440).

Almost surely, 2^{172873542031251} is an apocalyptic number.

172873542031251 is a deficient number, since it is larger than the sum of its proper divisors (69755990644269).

172873542031251 is a wasteful number, since it uses less digits than its factorization.

172873542031251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3032869158465.

The product of its (nonzero) digits is 2822400, while the sum is 51.

The spelling of 172873542031251 in words is "one hundred seventy-two trillion, eight hundred seventy-three billion, five hundred forty-two million, thirty-one thousand, two hundred fifty-one".