51878965248 has 312 divisors, whose sum is σ = 168791740416. Its totient is φ = 15210086400.

The previous prime is 51878965247. The next prime is 51878965267. The reversal of 51878965248 is 84256987815.

51878965248 is a `hidden beast` number, since 5 + 18 + 7 + 8 + 96 + 524 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (51878965247) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12568561 + ... + 12572687.

It is an arithmetic number, because the mean of its divisors is an integer number (540999168).

Almost surely, 2^51878965248 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 51878965248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84395870208).

51878965248 is an abundant number, since it is smaller than the sum of its proper divisors (116912775168).

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

51878965248 is a wasteful number, since it uses less digits than its factorization.

51878965248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4199 (or 4174 counting only the distinct ones).

The product of its digits is 38707200, while the sum is 63.

The spelling of 51878965248 in words is "fifty-one billion, eight hundred seventy-eight million, nine hundred sixty-five thousand, two hundred forty-eight".