51434342311 has 16 divisors (see below), whose sum is σ = 56343924000. Its totient is φ = 46564070400.

The previous prime is 51434342249. The next prime is 51434342339. The reversal of 51434342311 is 11324343415.

It is a cyclic number.

It is not a de Polignac number, because 51434342311 - 2¹⁵ = 51434309543 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 (51434342111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3097471 + ... + 3114031.

It is an arithmetic number, because the mean of its divisors is an integer number (3521495250).

Almost surely, 2^51434342311 is an apocalyptic number.

51434342311 is a deficient number, since it is larger than the sum of its proper divisors (4909581689).

51434342311 is a wasteful number, since it uses less digits than its factorization.

51434342311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17730.

The product of its digits is 17280, while the sum is 31.

Adding to 51434342311 its reverse (11324343415), we get a palindrome (62758685726).

The spelling of 51434342311 in words is "fifty-one billion, four hundred thirty-four million, three hundred forty-two thousand, three hundred eleven".