51630633652211 has 8 divisors (see below), whose sum is σ = 54498584005200. Its totient is φ = 48913231874544.

The previous prime is 51630633652201. The next prime is 51630633652219. The reversal of 51630633652211 is 11225633603615.

It is not a de Polignac number, because 51630633652211 - 2³⁸ = 51355755745267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51630633652219) 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, 3763707506 + ... + 3763721223.

It is an arithmetic number, because the mean of its divisors is an integer number (6812323000650).

Almost surely, 2^{51630633652211} is an apocalyptic number.

51630633652211 is a deficient number, since it is larger than the sum of its proper divisors (2867950352989).

51630633652211 is an frugal number, since it uses more digits than its factorization.

51630633652211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7527428786 (or 7527428748 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 44.

The spelling of 51630633652211 in words is "fifty-one trillion, six hundred thirty billion, six hundred thirty-three million, six hundred fifty-two thousand, two hundred eleven".