51863310205 has 16 divisors (see below), whose sum is σ = 71287403904. Its totient is φ = 35483123520.

The previous prime is 51863310127. The next prime is 51863310223. The reversal of 51863310205 is 50201336815.

It is not a de Polignac number, because 51863310205 - 2¹¹ = 51863308157 is a prime.

It is a Duffinian number.

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, 1656966 + ... + 1687975.

It is an arithmetic number, because the mean of its divisors is an integer number (4455462744).

Almost surely, 2^51863310205 is an apocalyptic number.

It is an amenable number.

51863310205 is a deficient number, since it is larger than the sum of its proper divisors (19424093699).

51863310205 is a wasteful number, since it uses less digits than its factorization.

51863310205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3345396.

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 51863310205 in words is "fifty-one billion, eight hundred sixty-three million, three hundred ten thousand, two hundred five".