1073806271987 has 2 divisors, whose sum is σ = 1073806271988. Its totient is φ = 1073806271986.

The previous prime is 1073806271971. The next prime is 1073806272017. The reversal of 1073806271987 is 7891726083701.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1073806271987 - 2⁴ = 1073806271971 is a prime.

It is not a weakly prime, because it can be changed into another prime (1073806271917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536903135993 + 536903135994.

It is an arithmetic number, because the mean of its divisors is an integer number (536903135994).

Almost surely, 2^{1073806271987} is an apocalyptic number.

1073806271987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1073806271987 is an equidigital number, since it uses as much as digits as its factorization.

1073806271987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7112448, while the sum is 59.

The spelling of 1073806271987 in words is "one trillion, seventy-three billion, eight hundred six million, two hundred seventy-one thousand, nine hundred eighty-seven".