51643589377008 has 320 divisors, whose sum is σ = 141113796710400. Its totient is φ = 16252060631040.

The previous prime is 51643589377007. The next prime is 51643589377021. The reversal of 51643589377008 is 80077398534615.

It is a self number, because there is not a number n which added to its sum of digits gives 51643589377008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51643589377007) 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, 12240715923 + ... + 12240720141.

It is an arithmetic number, because the mean of its divisors is an integer number (440980614720).

Almost surely, 2^{51643589377008} 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 51643589377008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70556898355200).

51643589377008 is an abundant number, since it is smaller than the sum of its proper divisors (89470207333392).

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

51643589377008 is a wasteful number, since it uses less digits than its factorization.

51643589377008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5160 (or 5154 counting only the distinct ones).

The product of its (nonzero) digits is 152409600, while the sum is 66.

The spelling of 51643589377008 in words is "fifty-one trillion, six hundred forty-three billion, five hundred eighty-nine million, three hundred seventy-seven thousand, eight".