51793278768 has 320 divisors, whose sum is σ = 191332515840. Its totient is φ = 13018579200.

The previous prime is 51793278763. The next prime is 51793278773. The reversal of 51793278768 is 86787239715.

51793278768 is a `hidden beast` number, since 5 + 179 + 327 + 87 + 68 = 666.

51793278768 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (51793278763) and next prime (51793278773).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (51793278763) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1006071 + ... + 1056297.

It is an arithmetic number, because the mean of its divisors is an integer number (597914112).

Almost surely, 2^51793278768 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 51793278768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95666257920).

51793278768 is an abundant number, since it is smaller than the sum of its proper divisors (139539237072).

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

51793278768 is a wasteful number, since it uses less digits than its factorization.

51793278768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50293 (or 50281 counting only the distinct ones).

The product of its digits is 35562240, while the sum is 63.

The spelling of 51793278768 in words is "fifty-one billion, seven hundred ninety-three million, two hundred seventy-eight thousand, seven hundred sixty-eight".