51450068742618 has 32 divisors (see below), whose sum is σ = 126646323060096. Its totient is φ = 13569248899008.

The previous prime is 51450068742593. The next prime is 51450068742643. The reversal of 51450068742618 is 81624786005415.

51450068742618 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (51450068742593) and next prime (51450068742643).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 47115447021 + ... + 47115448112.

It is an arithmetic number, because the mean of its divisors is an integer number (3957697595628).

Almost surely, 2^{51450068742618} is an apocalyptic number.

51450068742618 is an abundant number, since it is smaller than the sum of its proper divisors (75196254317478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51450068742618 is a wasteful number, since it uses less digits than its factorization.

51450068742618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94230895158.

The product of its (nonzero) digits is 12902400, while the sum is 57.

The spelling of 51450068742618 in words is "fifty-one trillion, four hundred fifty billion, sixty-eight million, seven hundred forty-two thousand, six hundred eighteen".