51433431205 has 16 divisors (see below), whose sum is σ = 69966126720. Its totient is φ = 35982577728.

The previous prime is 51433431191. The next prime is 51433431221. The reversal of 51433431205 is 50213433415.

It is a cyclic number.

It is not a de Polignac number, because 51433431205 - 2⁵ = 51433431173 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20822017 + ... + 20824486.

It is an arithmetic number, because the mean of its divisors is an integer number (4372882920).

Almost surely, 2^51433431205 is an apocalyptic number.

It is an amenable number.

51433431205 is a deficient number, since it is larger than the sum of its proper divisors (18532695515).

51433431205 is a wasteful number, since it uses less digits than its factorization.

51433431205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41646540.

The product of its (nonzero) digits is 21600, while the sum is 31.

The spelling of 51433431205 in words is "fifty-one billion, four hundred thirty-three million, four hundred thirty-one thousand, two hundred five".