51048278043904 has 72 divisors (see below), whose sum is σ = 102282634582632. Its totient is φ = 25427643310080.

The previous prime is 51048278043883. The next prime is 51048278043947. The reversal of 51048278043904 is 40934087284015.

51048278043904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 32398317570304 + 18649960473600 = 5691952^2 + 4318560^2 .

It is a super-3 number, since 3×51048278043904³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 7 ways as a sum of consecutive naturals, for example, 205472782 + ... + 205721074.

It is an arithmetic number, because the mean of its divisors is an integer number (1420592146981).

Almost surely, 2^{51048278043904} 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 51048278043904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51141317291316).

51048278043904 is an abundant number, since it is smaller than the sum of its proper divisors (51234356538728).

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

51048278043904 is a wasteful number, since it uses less digits than its factorization.

51048278043904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251343 (or 251329 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 55.

The spelling of 51048278043904 in words is "fifty-one trillion, forty-eight billion, two hundred seventy-eight million, forty-three thousand, nine hundred four".