51344121126500 has 48 divisors (see below), whose sum is σ = 112582316036736. Its totient is φ = 20455825100000.

The previous prime is 51344121126499. The next prime is 51344121126503. The reversal of 51344121126500 is 562112144315.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (51344121126503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204432752 + ... + 204683751.

It is an arithmetic number, because the mean of its divisors is an integer number (2345464917432).

Almost surely, 2^{51344121126500} is an apocalyptic number.

51344121126500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51344121126500 is an abundant number, since it is smaller than the sum of its proper divisors (61238194910236).

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

51344121126500 is a wasteful number, since it uses less digits than its factorization.

51344121126500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409116773 (or 409116761 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The spelling of 51344121126500 in words is "fifty-one trillion, three hundred forty-four billion, one hundred twenty-one million, one hundred twenty-six thousand, five hundred".