51265374163 has 2 divisors, whose sum is σ = 51265374164. Its totient is φ = 51265374162.

The previous prime is 51265374119. The next prime is 51265374169. The reversal of 51265374163 is 36147356215.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51265374163 - 2⁹ = 51265373651 is a prime.

It is not a weakly prime, because it can be changed into another prime (51265374169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25632687081 + 25632687082.

It is an arithmetic number, because the mean of its divisors is an integer number (25632687082).

Almost surely, 2^51265374163 is an apocalyptic number.

51265374163 is a deficient number, since it is larger than the sum of its proper divisors (1).

51265374163 is an equidigital number, since it uses as much as digits as its factorization.

51265374163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 453600, while the sum is 43.

The spelling of 51265374163 in words is "fifty-one billion, two hundred sixty-five million, three hundred seventy-four thousand, one hundred sixty-three".