51346430779 has 8 divisors (see below), whose sum is σ = 58691001600. Its totient is φ = 44004201576.

The previous prime is 51346430767. The next prime is 51346430827. The reversal of 51346430779 is 97703464315.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51346430779 - 2⁵ = 51346430747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51346130779) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 538159 + ... + 626344.

It is an arithmetic number, because the mean of its divisors is an integer number (7336375200).

Almost surely, 2^51346430779 is an apocalyptic number.

51346430779 is a deficient number, since it is larger than the sum of its proper divisors (7344570821).

51346430779 is a wasteful number, since it uses less digits than its factorization.

51346430779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170809.

The product of its (nonzero) digits is 1905120, while the sum is 49.

The spelling of 51346430779 in words is "fifty-one billion, three hundred forty-six million, four hundred thirty thousand, seven hundred seventy-nine".