1427731421707 has 2 divisors, whose sum is σ = 1427731421708. Its totient is φ = 1427731421706.

The previous prime is 1427731421657. The next prime is 1427731421749. The reversal of 1427731421707 is 7071241377241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1427731421707 - 2³⁵ = 1393371683339 is a prime.

It is not a weakly prime, because it can be changed into another prime (1427731421107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 713865710853 + 713865710854.

It is an arithmetic number, because the mean of its divisors is an integer number (713865710854).

Almost surely, 2^{1427731421707} is an apocalyptic number.

1427731421707 is a deficient number, since it is larger than the sum of its proper divisors (1).

1427731421707 is an equidigital number, since it uses as much as digits as its factorization.

1427731421707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 460992, while the sum is 46.

Adding to 1427731421707 its reverse (7071241377241), we get a palindrome (8498972798948).

The spelling of 1427731421707 in words is "one trillion, four hundred twenty-seven billion, seven hundred thirty-one million, four hundred twenty-one thousand, seven hundred seven".