51105146836563 has 12 divisors (see below), whose sum is σ = 76552565632088. Its totient is φ = 34070097890880.

The previous prime is 51105146836553. The next prime is 51105146836567. The reversal of 51105146836563 is 36563864150115.

51105146836563 is a `hidden beast` number, since 5 + 1 + 1 + 0 + 5 + 1 + 46 + 8 + 36 + 563 = 666.

It is not a de Polignac number, because 51105146836563 - 2¹³ = 51105146828371 is a prime.

It is a super-2 number, since 2×51105146836563² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51105146836567) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105154622878 + ... + 105154623363.

Almost surely, 2^{51105146836563} is an apocalyptic number.

51105146836563 is a deficient number, since it is larger than the sum of its proper divisors (25447418795525).

51105146836563 is an equidigital number, since it uses as much as digits as its factorization.

51105146836563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210309246256 (or 210309246244 counting only the distinct ones).

The product of its (nonzero) digits is 7776000, while the sum is 54.

The spelling of 51105146836563 in words is "fifty-one trillion, one hundred five billion, one hundred forty-six million, eight hundred thirty-six thousand, five hundred sixty-three".