51342511423 has 4 divisors (see below), whose sum is σ = 58677155920. Its totient is φ = 44007866928.

The previous prime is 51342511421. The next prime is 51342511433. The reversal of 51342511423 is 32411524315.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51342511423 - 2¹ = 51342511421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51342511421) 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 3 ways as a sum of consecutive naturals, for example, 3667322238 + ... + 3667322251.

It is an arithmetic number, because the mean of its divisors is an integer number (14669288980).

Almost surely, 2^51342511423 is an apocalyptic number.

51342511423 is a deficient number, since it is larger than the sum of its proper divisors (7334644497).

51342511423 is an equidigital number, since it uses as much as digits as its factorization.

51342511423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7334644496.

The product of its digits is 14400, while the sum is 31.

The spelling of 51342511423 in words is "fifty-one billion, three hundred forty-two million, five hundred eleven thousand, four hundred twenty-three".