1279708459951 has 2 divisors, whose sum is σ = 1279708459952. Its totient is φ = 1279708459950.

The previous prime is 1279708459823. The next prime is 1279708459987. The reversal of 1279708459951 is 1599548079721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1279708459951 - 2⁷ = 1279708459823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1279708456951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 639854229975 + 639854229976.

It is an arithmetic number, because the mean of its divisors is an integer number (639854229976).

Almost surely, 2^{1279708459951} is an apocalyptic number.

1279708459951 is a deficient number, since it is larger than the sum of its proper divisors (1).

1279708459951 is an equidigital number, since it uses as much as digits as its factorization.

1279708459951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57153600, while the sum is 67.

The spelling of 1279708459951 in words is "one trillion, two hundred seventy-nine billion, seven hundred eight million, four hundred fifty-nine thousand, nine hundred fifty-one".