51009606144000 has 4160 divisors, whose sum is σ = 230658329341440. Its totient is φ = 10969310822400.

The previous prime is 51009606143989. The next prime is 51009606144019. The reversal of 51009606144000 is 44160690015.

51009606144000 is a `hidden beast` number, since 5 + 1 + 0 + 0 + 9 + 606 + 1 + 4 + 40 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 614573567959 + ... + 614573568041.

It is an arithmetic number, because the mean of its divisors is an integer number (55446713784).

Almost surely, 2^{51009606144000} is an apocalyptic number.

51009606144000 is a gapful number since it is divisible by the number (50) 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 51009606144000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115329164670720).

51009606144000 is an abundant number, since it is smaller than the sum of its proper divisors (179648723197440).

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

51009606144000 is an equidigital number, since it uses as much as digits as its factorization.

51009606144000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 51009606144000 in words is "fifty-one trillion, nine billion, six hundred six million, one hundred forty-four thousand".