51938303360 has 128 divisors (see below), whose sum is σ = 127238031360. Its totient is φ = 20262574080.

The previous prime is 51938303359. The next prime is 51938303363. The reversal of 51938303360 is 6330383915.

It is a tau number, because it is divible by the number of its divisors (128).

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51938303363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35307425 + ... + 35308895.

It is an arithmetic number, because the mean of its divisors is an integer number (994047120).

Almost surely, 2^51938303360 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 51938303360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63619015680).

51938303360 is an abundant number, since it is smaller than the sum of its proper divisors (75299728000).

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

51938303360 is a wasteful number, since it uses less digits than its factorization.

51938303360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2816 (or 2804 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 41.

The spelling of 51938303360 in words is "fifty-one billion, nine hundred thirty-eight million, three hundred three thousand, three hundred sixty".