51843168364340 has 24 divisors (see below), whose sum is σ = 109122086963400. Its totient is φ = 20689375269888.

The previous prime is 51843168364303. The next prime is 51843168364349. The reversal of 51843168364340 is 4346386134815.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 29116816 + 51843139247524 = 5396^2 + 7200218^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51843168364349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2993245865 + ... + 2993263184.

It is an arithmetic number, because the mean of its divisors is an integer number (4546753623475).

Almost surely, 2^{51843168364340} is an apocalyptic number.

It is an amenable number.

51843168364340 is an abundant number, since it is smaller than the sum of its proper divisors (57278918599060).

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

51843168364340 is a wasteful number, since it uses less digits than its factorization.

51843168364340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5986509491 (or 5986509489 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 56.

The spelling of 51843168364340 in words is "fifty-one trillion, eight hundred forty-three billion, one hundred sixty-eight million, three hundred sixty-four thousand, three hundred forty".