51124774334461 has 8 divisors (see below), whose sum is σ = 54149195823480. Its totient is φ = 48102250825728.

The previous prime is 51124774334371. The next prime is 51124774334471. The reversal of 51124774334461 is 16443347742115.

It can be written as a sum of positive squares in 4 ways, for example, as 29940387311961 + 21184387022500 = 5471781^2 + 4602650^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51124774334461 - 2²¹ = 51124772237309 is a prime.

It is a super-2 number, since 2×51124774334461² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51124774334399 and 51124774334408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51124774334471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 474439606 + ... + 474547351.

It is an arithmetic number, because the mean of its divisors is an integer number (6768649477935).

Almost surely, 2^{51124774334461} is an apocalyptic number.

It is an amenable number.

51124774334461 is a deficient number, since it is larger than the sum of its proper divisors (3024421489019).

51124774334461 is a wasteful number, since it uses less digits than its factorization.

51124774334461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948990143.

The product of its digits is 6773760, while the sum is 52.

The spelling of 51124774334461 in words is "fifty-one trillion, one hundred twenty-four billion, seven hundred seventy-four million, three hundred thirty-four thousand, four hundred sixty-one".