51504073801044 has 48 divisors (see below), whose sum is σ = 120203101130112. Its totient is φ = 17164178105472.

The previous prime is 51504073801031. The next prime is 51504073801069. The reversal of 51504073801044 is 44010837040515.

It is a junction number, because it is equal to n+sod(n) for n = 51504073800987 and 51504073801005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1259155497 + ... + 1259196399.

It is an arithmetic number, because the mean of its divisors is an integer number (2504231273544).

Almost surely, 2^{51504073801044} is an apocalyptic number.

It is an amenable number.

51504073801044 is an abundant number, since it is smaller than the sum of its proper divisors (68699027329068).

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

51504073801044 is a wasteful number, since it uses less digits than its factorization.

51504073801044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61856 (or 61854 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 42.

The spelling of 51504073801044 in words is "fifty-one trillion, five hundred four billion, seventy-three million, eight hundred one thousand, forty-four".