1276420163087 has 2 divisors, whose sum is σ = 1276420163088. Its totient is φ = 1276420163086.

The previous prime is 1276420163071. The next prime is 1276420163093. The reversal of 1276420163087 is 7803610246721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1276420163087 - 2⁴ = 1276420163071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1276420163027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 638210081543 + 638210081544.

It is an arithmetic number, because the mean of its divisors is an integer number (638210081544).

Almost surely, 2^{1276420163087} is an apocalyptic number.

1276420163087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1276420163087 is an equidigital number, since it uses as much as digits as its factorization.

1276420163087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 677376, while the sum is 47.

The spelling of 1276420163087 in words is "one trillion, two hundred seventy-six billion, four hundred twenty million, one hundred sixty-three thousand, eighty-seven".