51431352405 has 16 divisors (see below), whose sum is σ = 82293309504. Its totient is φ = 27429006080.

The previous prime is 51431352403. The next prime is 51431352421. The reversal of 51431352405 is 50425313415.

51431352405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51431352405 - 2¹ = 51431352403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51431352403) 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, 494125 + ... + 589085.

It is an arithmetic number, because the mean of its divisors is an integer number (5143331844).

Almost surely, 2^51431352405 is an apocalyptic number.

It is an amenable number.

51431352405 is a deficient number, since it is larger than the sum of its proper divisors (30861957099).

51431352405 is a wasteful number, since it uses less digits than its factorization.

51431352405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131076.

The product of its (nonzero) digits is 36000, while the sum is 33.

The spelling of 51431352405 in words is "fifty-one billion, four hundred thirty-one million, three hundred fifty-two thousand, four hundred five".