51233443215204 has 12 divisors (see below), whose sum is σ = 119544700835504. Its totient is φ = 17077814405064.

The previous prime is 51233443215167. The next prime is 51233443215233. The reversal of 51233443215204 is 40251234433215.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2134726800622 + ... + 2134726800645.

Almost surely, 2^{51233443215204} is an apocalyptic number.

It is an amenable number.

51233443215204 is an abundant number, since it is smaller than the sum of its proper divisors (68311257620300).

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

51233443215204 is a wasteful number, since it uses less digits than its factorization.

51233443215204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4269453601274 (or 4269453601272 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 39.

Adding to 51233443215204 its reverse (40251234433215), we get a palindrome (91484677648419).

The spelling of 51233443215204 in words is "fifty-one trillion, two hundred thirty-three billion, four hundred forty-three million, two hundred fifteen thousand, two hundred four".