51142012392 has 32 divisors (see below), whose sum is σ = 129395458080. Its totient is φ = 16841947200.

The previous prime is 51142012391. The next prime is 51142012409. The reversal of 51142012392 is 29321024115.

It is not an unprimeable number, because it can be changed into a prime (51142012391) 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 7 ways as a sum of consecutive naturals, for example, 12834859 + ... + 12838842.

It is an arithmetic number, because the mean of its divisors is an integer number (4043608065).

Almost surely, 2^51142012392 is an apocalyptic number.

It is an amenable number.

51142012392 is an abundant number, since it is smaller than the sum of its proper divisors (78253445688).

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

51142012392 is a wasteful number, since it uses less digits than its factorization.

51142012392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25673793 (or 25673789 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The spelling of 51142012392 in words is "fifty-one billion, one hundred forty-two million, twelve thousand, three hundred ninety-two".