51647578627 has 2 divisors, whose sum is σ = 51647578628. Its totient is φ = 51647578626.

The previous prime is 51647578561. The next prime is 51647578663. The reversal of 51647578627 is 72687574615.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51647578627 - 2³¹ = 49500094979 is a prime.

It is not a weakly prime, because it can be changed into another prime (51647078627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25823789313 + 25823789314.

It is an arithmetic number, because the mean of its divisors is an integer number (25823789314).

Almost surely, 2^51647578627 is an apocalyptic number.

51647578627 is a deficient number, since it is larger than the sum of its proper divisors (1).

51647578627 is an equidigital number, since it uses as much as digits as its factorization.

51647578627 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19756800, while the sum is 58.

The spelling of 51647578627 in words is "fifty-one billion, six hundred forty-seven million, five hundred seventy-eight thousand, six hundred twenty-seven".