51326416133460 has 108 divisors (see below), whose sum is σ = 168587536169052. Its totient is φ = 12634194733056.

The previous prime is 51326416133449. The next prime is 51326416133467. The reversal of 51326416133460 is 6433161462315.

51326416133460 is a `hidden beast` number, since 5 + 1 + 3 + 26 + 4 + 1 + 613 + 3 + 4 + 6 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 2247732571536 + 49078683561924 = 1499244^2 + 7005618^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51326416133467) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 843599037 + ... + 843659876.

It is an arithmetic number, because the mean of its divisors is an integer number (1560995705269).

Almost surely, 2^{51326416133460} is an apocalyptic number.

It is an amenable number.

51326416133460 is an abundant number, since it is smaller than the sum of its proper divisors (117261120035592).

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

51326416133460 is a wasteful number, since it uses less digits than its factorization.

51326416133460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687258954 (or 1687258936 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 45.

Adding to 51326416133460 its reverse (6433161462315), we get a palindrome (57759577595775).

The spelling of 51326416133460 in words is "fifty-one trillion, three hundred twenty-six billion, four hundred sixteen million, one hundred thirty-three thousand, four hundred sixty".