51939800526384 has 200 divisors, whose sum is σ = 151177148358720. Its totient is φ = 17286925739328.

The previous prime is 51939800526371. The next prime is 51939800526401. The reversal of 51939800526384 is 48362500893915.

51939800526384 is a `hidden beast` number, since 5 + 19 + 3 + 98 + 0 + 0 + 526 + 3 + 8 + 4 = 666.

51939800526384 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 207412419 + ... + 207662685.

Almost surely, 2^{51939800526384} is an apocalyptic number.

51939800526384 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51939800526384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75588574179360).

51939800526384 is an abundant number, since it is smaller than the sum of its proper divisors (99237347832336).

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

51939800526384 is an frugal number, since it uses more digits than its factorization.

51939800526384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250961 (or 250931 counting only the distinct ones).

The product of its (nonzero) digits is 55987200, while the sum is 63.

The spelling of 51939800526384 in words is "fifty-one trillion, nine hundred thirty-nine billion, eight hundred million, five hundred twenty-six thousand, three hundred eighty-four".