51106420322612 has 12 divisors (see below), whose sum is σ = 89759110063140. Its totient is φ = 25460960304576.

The previous prime is 51106420322599. The next prime is 51106420322641. The reversal of 51106420322612 is 21622302460115.

It can be written as a sum of positive squares in 2 ways, for example, as 5665285394596 + 45441134928016 = 2380186^2 + 6741004^2 .

It is a super-2 number, since 2×51106420322612² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23062462937 + ... + 23062465152.

It is an arithmetic number, because the mean of its divisors is an integer number (7479925838595).

Almost surely, 2^{51106420322612} is an apocalyptic number.

It is an amenable number.

51106420322612 is a deficient number, since it is larger than the sum of its proper divisors (38652689740528).

51106420322612 is a wasteful number, since it uses less digits than its factorization.

51106420322612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46124928370 (or 46124928368 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

Adding to 51106420322612 its reverse (21622302460115), we get a palindrome (72728722782727).

The spelling of 51106420322612 in words is "fifty-one trillion, one hundred six billion, four hundred twenty million, three hundred twenty-two thousand, six hundred twelve".