51413247667 has 2 divisors, whose sum is σ = 51413247668. Its totient is φ = 51413247666.

The previous prime is 51413247659. The next prime is 51413247671. The reversal of 51413247667 is 76674231415.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51413247667 - 2³ = 51413247659 is a prime.

It is not a weakly prime, because it can be changed into another prime (51413241667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25706623833 + 25706623834.

It is an arithmetic number, because the mean of its divisors is an integer number (25706623834).

Almost surely, 2^51413247667 is an apocalyptic number.

51413247667 is a deficient number, since it is larger than the sum of its proper divisors (1).

51413247667 is an equidigital number, since it uses as much as digits as its factorization.

51413247667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 46.

The spelling of 51413247667 in words is "fifty-one billion, four hundred thirteen million, two hundred forty-seven thousand, six hundred sixty-seven".