1027416276781 has 2 divisors, whose sum is σ = 1027416276782. Its totient is φ = 1027416276780.

The previous prime is 1027416276749. The next prime is 1027416276787. The reversal of 1027416276781 is 1876726147201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1011613524100 + 15802752681 = 1005790^2 + 125709^2 .

It is a cyclic number.

It is not a de Polignac number, because 1027416276781 - 2⁵ = 1027416276749 is a prime.

It is a super-2 number, since 2×1027416276781² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1027416276787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513708138390 + 513708138391.

It is an arithmetic number, because the mean of its divisors is an integer number (513708138391).

Almost surely, 2^{1027416276781} is an apocalyptic number.

It is an amenable number.

1027416276781 is a deficient number, since it is larger than the sum of its proper divisors (1).

1027416276781 is an equidigital number, since it uses as much as digits as its factorization.

1027416276781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1580544, while the sum is 52.

The spelling of 1027416276781 in words is "one trillion, twenty-seven billion, four hundred sixteen million, two hundred seventy-six thousand, seven hundred eighty-one".