51011306344 has 8 divisors (see below), whose sum is σ = 95646199410. Its totient is φ = 25505653168.

The previous prime is 51011306329. The next prime is 51011306347. The reversal of 51011306344 is 44360311015.

It can be written as a sum of positive squares in only one way, i.e., 48457216900 + 2554089444 = 220130^2 + 50538^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (51011306347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3188206639 + ... + 3188206654.

Almost surely, 2^51011306344 is an apocalyptic number.

It is an amenable number.

51011306344 is a deficient number, since it is larger than the sum of its proper divisors (44634893066).

51011306344 is a wasteful number, since it uses less digits than its factorization.

51011306344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6376413299 (or 6376413295 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 51011306344 its reverse (44360311015), we get a palindrome (95371617359).

The spelling of 51011306344 in words is "fifty-one billion, eleven million, three hundred six thousand, three hundred forty-four".