51040320104 has 32 divisors (see below), whose sum is σ = 96990078240. Its totient is φ = 25178088000.

The previous prime is 51040320083. The next prime is 51040320151. The reversal of 51040320104 is 40102304015.

It is a super-2 number, since 2×51040320104² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117059 + ... + 340269.

It is an arithmetic number, because the mean of its divisors is an integer number (3030939945).

Almost surely, 2^51040320104 is an apocalyptic number.

It is an amenable number.

51040320104 is a deficient number, since it is larger than the sum of its proper divisors (45949758136).

51040320104 is a wasteful number, since it uses less digits than its factorization.

51040320104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223601 (or 223597 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 51040320104 its reverse (40102304015), we get a palindrome (91142624119).

The spelling of 51040320104 in words is "fifty-one billion, forty million, three hundred twenty thousand, one hundred four".