51612156288 has 768 divisors, whose sum is σ = 195908544000. Its totient is φ = 13226250240.

The previous prime is 51612156259. The next prime is 51612156313. The reversal of 51612156288 is 88265121615.

51612156288 is a `hidden beast` number, since 5 + 1 + 6 + 1 + 2 + 1 + 562 + 88 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 191866618 + ... + 191866886.

It is an arithmetic number, because the mean of its divisors is an integer number (255089250).

Almost surely, 2^51612156288 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 51612156288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97954272000).

51612156288 is an abundant number, since it is smaller than the sum of its proper divisors (144296387712).

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

51612156288 is a wasteful number, since it uses less digits than its factorization.

51612156288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420 (or 395 counting only the distinct ones).

The product of its digits is 230400, while the sum is 45.

The spelling of 51612156288 in words is "fifty-one billion, six hundred twelve million, one hundred fifty-six thousand, two hundred eighty-eight".