51429067511 has 4 divisors (see below), whose sum is σ = 51478002024. Its totient is φ = 51380133000.

The previous prime is 51429067427. The next prime is 51429067553. The reversal of 51429067511 is 11576092415.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11576092415 = 5 ⋅2315218483.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51429067511 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 (51429067411) 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 3 ways as a sum of consecutive naturals, for example, 24465680 + ... + 24467781.

It is an arithmetic number, because the mean of its divisors is an integer number (12869500506).

Almost surely, 2^51429067511 is an apocalyptic number.

51429067511 is a deficient number, since it is larger than the sum of its proper divisors (48934513).

51429067511 is a wasteful number, since it uses less digits than its factorization.

51429067511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48934512.

The product of its (nonzero) digits is 75600, while the sum is 41.

The spelling of 51429067511 in words is "fifty-one billion, four hundred twenty-nine million, sixty-seven thousand, five hundred eleven".