51212143142264 has 64 divisors (see below), whose sum is σ = 108878101332000. Its totient is φ = 22386927329280.

The previous prime is 51212143142257. The next prime is 51212143142339. The reversal of 51212143142264 is 46224134121215.

51212143142264 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5020484 + ... + 11297324.

Almost surely, 2^{51212143142264} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51212143142264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54439050666000).

51212143142264 is an abundant number, since it is smaller than the sum of its proper divisors (57665958189736).

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

51212143142264 is a wasteful number, since it uses less digits than its factorization.

51212143142264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6281008 (or 6281004 counting only the distinct ones).

The product of its digits is 92160, while the sum is 38.

Adding to 51212143142264 its reverse (46224134121215), we get a palindrome (97436277263479).

The spelling of 51212143142264 in words is "fifty-one trillion, two hundred twelve billion, one hundred forty-three million, one hundred forty-two thousand, two hundred sixty-four".