51005402403344 has 40 divisors (see below), whose sum is σ = 104637480507000. Its totient is φ = 24002221703168.

The previous prime is 51005402403341. The next prime is 51005402403349. The reversal of 51005402403344 is 44330420450015.

It can be written as a sum of positive squares in 4 ways, for example, as 10469107360000 + 40536295043344 = 3235600^2 + 6366812^2 .

It is not an unprimeable number, because it can be changed into a prime (51005402403341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19797992 + ... + 22225464.

It is an arithmetic number, because the mean of its divisors is an integer number (2615937012675).

Almost surely, 2^{51005402403344} is an apocalyptic number.

It is an amenable number.

51005402403344 is an abundant number, since it is smaller than the sum of its proper divisors (53632078103656).

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

51005402403344 is a wasteful number, since it uses less digits than its factorization.

51005402403344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2504747 (or 2504741 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 51005402403344 its reverse (44330420450015), we get a palindrome (95335822853359).

The spelling of 51005402403344 in words is "fifty-one trillion, five billion, four hundred two million, four hundred three thousand, three hundred forty-four".