51333443150340 has 192 divisors, whose sum is σ = 155817581052672. Its totient is φ = 12552236236800.

The previous prime is 51333443150221. The next prime is 51333443150393. The reversal of 51333443150340 is 4305134433315.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 103776400 + ... + 104269880.

It is an arithmetic number, because the mean of its divisors is an integer number (811549901316).

Almost surely, 2^{51333443150340} 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 51333443150340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77908790526336).

51333443150340 is an abundant number, since it is smaller than the sum of its proper divisors (104484137902332).

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

51333443150340 is a wasteful number, since it uses less digits than its factorization.

51333443150340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494390 (or 494388 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 39.

Adding to 51333443150340 its reverse (4305134433315), we get a palindrome (55638577583655).

The spelling of 51333443150340 in words is "fifty-one trillion, three hundred thirty-three billion, four hundred forty-three million, one hundred fifty thousand, three hundred forty".