1262306157887 has 2 divisors, whose sum is σ = 1262306157888. Its totient is φ = 1262306157886.

The previous prime is 1262306157737. The next prime is 1262306157961. The reversal of 1262306157887 is 7887516032621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1262306157887 - 2¹⁸ = 1262305895743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1262306157487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631153078943 + 631153078944.

It is an arithmetic number, because the mean of its divisors is an integer number (631153078944).

Almost surely, 2^{1262306157887} is an apocalyptic number.

1262306157887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1262306157887 is an equidigital number, since it uses as much as digits as its factorization.

1262306157887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6773760, while the sum is 56.

The spelling of 1262306157887 in words is "one trillion, two hundred sixty-two billion, three hundred six million, one hundred fifty-seven thousand, eight hundred eighty-seven".