51243750667 has 2 divisors, whose sum is σ = 51243750668. Its totient is φ = 51243750666.

The previous prime is 51243750653. The next prime is 51243750697. The reversal of 51243750667 is 76605734215.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51243750667 - 2²⁷ = 51109532939 is a prime.

It is not a weakly prime, because it can be changed into another prime (51243750617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25621875333 + 25621875334.

It is an arithmetic number, because the mean of its divisors is an integer number (25621875334).

Almost surely, 2^51243750667 is an apocalyptic number.

51243750667 is a deficient number, since it is larger than the sum of its proper divisors (1).

51243750667 is an equidigital number, since it uses as much as digits as its factorization.

51243750667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1058400, while the sum is 46.

The spelling of 51243750667 in words is "fifty-one billion, two hundred forty-three million, seven hundred fifty thousand, six hundred sixty-seven".