51294174643 has 2 divisors, whose sum is σ = 51294174644. Its totient is φ = 51294174642.

The previous prime is 51294174553. The next prime is 51294174677. The reversal of 51294174643 is 34647149215.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51294174643 - 2²⁵ = 51260620211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51294174593 and 51294174602.

It is not a weakly prime, because it can be changed into another prime (51294174683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25647087321 + 25647087322.

It is an arithmetic number, because the mean of its divisors is an integer number (25647087322).

Almost surely, 2^51294174643 is an apocalyptic number.

51294174643 is a deficient number, since it is larger than the sum of its proper divisors (1).

51294174643 is an equidigital number, since it uses as much as digits as its factorization.

51294174643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 46.

The spelling of 51294174643 in words is "fifty-one billion, two hundred ninety-four million, one hundred seventy-four thousand, six hundred forty-three".