51517711634 has 16 divisors (see below), whose sum is σ = 77374880856. Its totient is φ = 25726108800.

The previous prime is 51517711601. The next prime is 51517711669. The reversal of 51517711634 is 43611771515.

It can be written as a sum of positive squares in 4 ways, for example, as 38097184225 + 13420527409 = 195185^2 + 115847^2 .

It is a super-2 number, since 2×51517711634² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51517711591 and 51517711600.

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, 5988224 + ... + 5996820.

Almost surely, 2^51517711634 is an apocalyptic number.

51517711634 is a deficient number, since it is larger than the sum of its proper divisors (25857169222).

51517711634 is a wasteful number, since it uses less digits than its factorization.

51517711634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12061.

The product of its digits is 88200, while the sum is 41.

The spelling of 51517711634 in words is "fifty-one billion, five hundred seventeen million, seven hundred eleven thousand, six hundred thirty-four".