51010622121172 has 48 divisors (see below), whose sum is σ = 103953597979392. Its totient is φ = 21447678320640.

The previous prime is 51010622121161. The next prime is 51010622121211. The reversal of 51010622121172 is 27112122601015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19675633 + ... + 22116775.

It is an arithmetic number, because the mean of its divisors is an integer number (2165699957904).

Almost surely, 2^{51010622121172} is an apocalyptic number.

It is an amenable number.

51010622121172 is an abundant number, since it is smaller than the sum of its proper divisors (52942975858220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51010622121172 is a wasteful number, since it uses less digits than its factorization.

51010622121172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2455288 (or 2455286 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 31.

Adding to 51010622121172 its reverse (27112122601015), we get a palindrome (78122744722187).

The spelling of 51010622121172 in words is "fifty-one trillion, ten billion, six hundred twenty-two million, one hundred twenty-one thousand, one hundred seventy-two".