51378185543104 has 56 divisors (see below), whose sum is σ = 121584401837568. Its totient is φ = 21061864876800.

The previous prime is 51378185543063. The next prime is 51378185543131. The reversal of 51378185543104 is 40134558187315.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2493108172 + ... + 2493128779.

Almost surely, 2^{51378185543104} is an apocalyptic number.

It is an amenable number.

51378185543104 is an abundant number, since it is smaller than the sum of its proper divisors (70206216294464).

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

51378185543104 is a wasteful number, since it uses less digits than its factorization.

51378185543104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4986236993 (or 4986236983 counting only the distinct ones).

The product of its (nonzero) digits is 8064000, while the sum is 55.

The spelling of 51378185543104 in words is "fifty-one trillion, three hundred seventy-eight billion, one hundred eighty-five million, five hundred forty-three thousand, one hundred four".