51871503627 has 16 divisors (see below), whose sum is σ = 77152844160. Its totient is φ = 34443225000.

The previous prime is 51871503617. The next prime is 51871503643. The reversal of 51871503627 is 72630517815.

It is a happy number.

51871503627 is a `hidden beast` number, since 5 + 1 + 8 + 7 + 15 + 0 + 3 + 627 = 666.

It is not a de Polignac number, because 51871503627 - 2⁸ = 51871503371 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (51871503617) 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, 3820249 + ... + 3833802.

It is an arithmetic number, because the mean of its divisors is an integer number (4822052760).

Almost surely, 2^51871503627 is an apocalyptic number.

51871503627 is a deficient number, since it is larger than the sum of its proper divisors (25281340533).

51871503627 is a wasteful number, since it uses less digits than its factorization.

51871503627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7654311 (or 7654305 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The spelling of 51871503627 in words is "fifty-one billion, eight hundred seventy-one million, five hundred three thousand, six hundred twenty-seven".