51340628176641 has 10 divisors (see below), whose sum is σ = 76694024807202. Its totient is φ = 34227085451040.

The previous prime is 51340628176637. The next prime is 51340628176693. The reversal of 51340628176641 is 14667182604315.

51340628176641 is a `hidden beast` number, since 5 + 1 + 3 + 4 + 0 + 628 + 1 + 7 + 6 + 6 + 4 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 28736879341041 + 22603748835600 = 5360679^2 + 4754340^2 .

It is not a de Polignac number, because 51340628176641 - 2² = 51340628176637 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51340628176631) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 316917457800 + ... + 316917457961.

Almost surely, 2^{51340628176641} is an apocalyptic number.

It is an amenable number.

51340628176641 is a deficient number, since it is larger than the sum of its proper divisors (25353396630561).

51340628176641 is an equidigital number, since it uses as much as digits as its factorization.

51340628176641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633834915773 (or 633834915764 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 51340628176641 in words is "fifty-one trillion, three hundred forty billion, six hundred twenty-eight million, one hundred seventy-six thousand, six hundred forty-one".