51846607643 has 2 divisors, whose sum is σ = 51846607644. Its totient is φ = 51846607642.

The previous prime is 51846607597. The next prime is 51846607663. The reversal of 51846607643 is 34670664815.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51846607643 - 2²⁸ = 51578172187 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 51846607591 and 51846607600.

It is not a weakly prime, because it can be changed into another prime (51846607663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25923303821 + 25923303822.

It is an arithmetic number, because the mean of its divisors is an integer number (25923303822).

Almost surely, 2^51846607643 is an apocalyptic number.

51846607643 is a deficient number, since it is larger than the sum of its proper divisors (1).

51846607643 is an equidigital number, since it uses as much as digits as its factorization.

51846607643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2903040, while the sum is 50.

The spelling of 51846607643 in words is "fifty-one billion, eight hundred forty-six million, six hundred seven thousand, six hundred forty-three".