51461084282140 has 96 divisors (see below), whose sum is σ = 122665959722880. Its totient is φ = 17999660829696.

The previous prime is 51461084282107. The next prime is 51461084282141. The reversal of 51461084282140 is 4128248016415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51461084282141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63987904 + ... + 64787143.

It is an arithmetic number, because the mean of its divisors is an integer number (1277770413780).

Almost surely, 2^{51461084282140} is an apocalyptic number.

It is an amenable number.

51461084282140 is an abundant number, since it is smaller than the sum of its proper divisors (71204875440740).

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

51461084282140 is a wasteful number, since it uses less digits than its factorization.

51461084282140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128775151 (or 128775149 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 46.

The spelling of 51461084282140 in words is "fifty-one trillion, four hundred sixty-one billion, eighty-four million, two hundred eighty-two thousand, one hundred forty".