51657366846604 has 24 divisors (see below), whose sum is σ = 91113748963328. Its totient is φ = 25624874031120.

The previous prime is 51657366846587. The next prime is 51657366846607. The reversal of 51657366846604 is 40664866375615.

51657366846604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 51657366846604.

It is not an unprimeable number, because it can be changed into a prime (51657366846607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30274987 + ... + 31935709.

Almost surely, 2^{51657366846604} is an apocalyptic number.

It is an amenable number.

51657366846604 is a deficient number, since it is larger than the sum of its proper divisors (39456382116724).

51657366846604 is a wasteful number, since it uses less digits than its factorization.

51657366846604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722085 (or 1722083 counting only the distinct ones).

The product of its (nonzero) digits is 522547200, while the sum is 67.

The spelling of 51657366846604 in words is "fifty-one trillion, six hundred fifty-seven billion, three hundred sixty-six million, eight hundred forty-six thousand, six hundred four".