1427197095787 has 2 divisors, whose sum is σ = 1427197095788. Its totient is φ = 1427197095786.

The previous prime is 1427197095769. The next prime is 1427197095791. The reversal of 1427197095787 is 7875907917241.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1427197095787 - 2¹⁹ = 1427196571499 is a prime.

It is a super-3 number, since 3×1427197095787³ (a number of 37 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1427197095767) 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, 713598547893 + 713598547894.

It is an arithmetic number, because the mean of its divisors is an integer number (713598547894).

Almost surely, 2^{1427197095787} is an apocalyptic number.

1427197095787 is a deficient number, since it is larger than the sum of its proper divisors (1).

1427197095787 is an equidigital number, since it uses as much as digits as its factorization.

1427197095787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62233920, while the sum is 67.

The spelling of 1427197095787 in words is "one trillion, four hundred twenty-seven billion, one hundred ninety-seven million, ninety-five thousand, seven hundred eighty-seven".