172028607051 has 24 divisors (see below), whose sum is σ = 266836874304. Its totient is φ = 98295800400.

The previous prime is 172028607043. The next prime is 172028607089. The reversal of 172028607051 is 150706820271.

It is not a de Polignac number, because 172028607051 - 2³ = 172028607043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (172028607011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3278976 + ... + 3331026.

It is an arithmetic number, because the mean of its divisors is an integer number (11118203096).

Almost surely, 2^172028607051 is an apocalyptic number.

172028607051 is a deficient number, since it is larger than the sum of its proper divisors (94808267253).

172028607051 is a wasteful number, since it uses less digits than its factorization.

172028607051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74551 (or 74544 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 39.

The spelling of 172028607051 in words is "one hundred seventy-two billion, twenty-eight million, six hundred seven thousand, fifty-one".