51541333212 has 192 divisors, whose sum is σ = 133056000000. Its totient is φ = 15467397120.

The previous prime is 51541333177. The next prime is 51541333219. The reversal of 51541333212 is 21233314515.

It is a self number, because there is not a number n which added to its sum of digits gives 51541333212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51541333219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 114791164 + ... + 114791612.

It is an arithmetic number, because the mean of its divisors is an integer number (693000000).

Almost surely, 2^51541333212 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 51541333212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66528000000).

51541333212 is an abundant number, since it is smaller than the sum of its proper divisors (81514666788).

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

51541333212 is a wasteful number, since it uses less digits than its factorization.

51541333212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764 (or 762 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

Adding to 51541333212 its reverse (21233314515), we get a palindrome (72774647727).

The spelling of 51541333212 in words is "fifty-one billion, five hundred forty-one million, three hundred thirty-three thousand, two hundred twelve".