51031434205 has 8 divisors (see below), whose sum is σ = 61242515712. Its totient is φ = 40821950928.

The previous prime is 51031434121. The next prime is 51031434227. The reversal of 51031434205 is 50243413015.

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 51031434205 - 2⁹ = 51031433693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 328149 + ... + 457978.

It is an arithmetic number, because the mean of its divisors is an integer number (7655314464).

Almost surely, 2^51031434205 is an apocalyptic number.

It is an amenable number.

51031434205 is a deficient number, since it is larger than the sum of its proper divisors (10211081507).

51031434205 is a wasteful number, since it uses less digits than its factorization.

51031434205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799115.

The product of its (nonzero) digits is 7200, while the sum is 28.

The spelling of 51031434205 in words is "fifty-one billion, thirty-one million, four hundred thirty-four thousand, two hundred five".