51350944344 has 128 divisors (see below), whose sum is σ = 153193920000. Its totient is φ = 14330397312.

The previous prime is 51350944343. The next prime is 51350944349. The reversal of 51350944344 is 44344905315.

51350944344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 51350944296 and 51350944305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51350944343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 281442 + ... + 426510.

It is an arithmetic number, because the mean of its divisors is an integer number (1196827500).

Almost surely, 2^51350944344 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 51350944344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76596960000).

51350944344 is an abundant number, since it is smaller than the sum of its proper divisors (101842975656).

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

51350944344 is a wasteful number, since it uses less digits than its factorization.

51350944344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145142 (or 145124 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 51350944344 in words is "fifty-one billion, three hundred fifty million, nine hundred forty-four thousand, three hundred forty-four".