51346326663661 has 8 divisors (see below), whose sum is σ = 52659908582400. Its totient is φ = 50035660577760.

The previous prime is 51346326663641. The next prime is 51346326663733. The reversal of 51346326663661 is 16636662364315.

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 51346326663661 - 2¹³ = 51346326655469 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51346326663596 and 51346326663605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51346326663601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 728922541 + ... + 728992978.

It is an arithmetic number, because the mean of its divisors is an integer number (6582488572800).

Almost surely, 2^{51346326663661} is an apocalyptic number.

It is an amenable number.

51346326663661 is a deficient number, since it is larger than the sum of its proper divisors (1313581918739).

51346326663661 is a wasteful number, since it uses less digits than its factorization.

51346326663661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457916419.

The product of its digits is 50388480, while the sum is 58.

The spelling of 51346326663661 in words is "fifty-one trillion, three hundred forty-six billion, three hundred twenty-six million, six hundred sixty-three thousand, six hundred sixty-one".