10677442781 has 2 divisors, whose sum is σ = 10677442782. Its totient is φ = 10677442780.

The previous prime is 10677442759. The next prime is 10677442793. The reversal of 10677442781 is 18724477601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10410937156 + 266505625 = 102034^2 + 16325^2 .

It is an emirp because it is prime and its reverse (18724477601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10677442781 - 2¹⁸ = 10677180637 is a prime.

It is a super-2 number, since 2×10677442781² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10677442481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5338721390 + 5338721391.

It is an arithmetic number, because the mean of its divisors is an integer number (5338721391).

Almost surely, 2^10677442781 is an apocalyptic number.

It is an amenable number.

10677442781 is a deficient number, since it is larger than the sum of its proper divisors (1).

10677442781 is an equidigital number, since it uses as much as digits as its factorization.

10677442781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 526848, while the sum is 47.

The spelling of 10677442781 in words is "ten billion, six hundred seventy-seven million, four hundred forty-two thousand, seven hundred eighty-one".