51738745142 has 24 divisors (see below), whose sum is σ = 91155342096. Its totient is φ = 21958464528.

The previous prime is 51738745141. The next prime is 51738745147. The reversal of 51738745142 is 24154783715.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51738745141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2552753 + ... + 2572940.

It is an arithmetic number, because the mean of its divisors is an integer number (3798139254).

Almost surely, 2^51738745142 is an apocalyptic number.

51738745142 is a deficient number, since it is larger than the sum of its proper divisors (39416596954).

51738745142 is a wasteful number, since it uses less digits than its factorization.

51738745142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5125812 (or 5125805 counting only the distinct ones).

The product of its digits is 940800, while the sum is 47.

The spelling of 51738745142 in words is "fifty-one billion, seven hundred thirty-eight million, seven hundred forty-five thousand, one hundred forty-two".