51263244010744 has 64 divisors (see below), whose sum is σ = 99498893140800. Its totient is φ = 24731382014976.

The previous prime is 51263244010717. The next prime is 51263244010757. The reversal of 51263244010744 is 44701044236215.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 51263244010744.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4701750397 + ... + 4701761299.

It is an arithmetic number, because the mean of its divisors is an integer number (1554670205325).

Almost surely, 2^{51263244010744} is an apocalyptic number.

It is an amenable number.

51263244010744 is a deficient number, since it is larger than the sum of its proper divisors (48235649130056).

51263244010744 is a wasteful number, since it uses less digits than its factorization.

51263244010744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22504 (or 22500 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 43.

Adding to 51263244010744 its reverse (44701044236215), we get a palindrome (95964288246959).

The spelling of 51263244010744 in words is "fifty-one trillion, two hundred sixty-three billion, two hundred forty-four million, ten thousand, seven hundred forty-four".