51431708159 has 8 divisors (see below), whose sum is σ = 55501733280. Its totient is φ = 47377931616.

The previous prime is 51431708143. The next prime is 51431708173. The reversal of 51431708159 is 95180713415.

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 51431708159 - 2⁴ = 51431708143 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 (51431708459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4055564 + ... + 4068225.

It is an arithmetic number, because the mean of its divisors is an integer number (6937716660).

Almost surely, 2^51431708159 is an apocalyptic number.

51431708159 is a deficient number, since it is larger than the sum of its proper divisors (4070025121).

51431708159 is a wasteful number, since it uses less digits than its factorization.

51431708159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8124289.

The product of its (nonzero) digits is 151200, while the sum is 44.

The spelling of 51431708159 in words is "fifty-one billion, four hundred thirty-one million, seven hundred eight thousand, one hundred fifty-nine".