51939736386048 has 1080 divisors, whose sum is σ = 189000914854752. Its totient is φ = 13965160513536.

The previous prime is 51939736386011. The next prime is 51939736386053. The reversal of 51939736386048 is 84068363793915.

51939736386048 is a `hidden beast` number, since 5 + 1 + 9 + 3 + 9 + 7 + 3 + 6 + 3 + 8 + 604 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 6795722515 + ... + 6795730157.

Almost surely, 2^{51939736386048} 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 51939736386048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94500457427376).

51939736386048 is an abundant number, since it is smaller than the sum of its proper divisors (137061178468704).

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

51939736386048 is an frugal number, since it uses more digits than its factorization.

51939736386048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7726 (or 7672 counting only the distinct ones).

The product of its (nonzero) digits is 705438720, while the sum is 72.

The spelling of 51939736386048 in words is "fifty-one trillion, nine hundred thirty-nine billion, seven hundred thirty-six million, three hundred eighty-six thousand, forty-eight".