11278067677 has 2 divisors, whose sum is σ = 11278067678. Its totient is φ = 11278067676.

The previous prime is 11278067659. The next prime is 11278067753. The reversal of 11278067677 is 77676087211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11086826436 + 191241241 = 105294^2 + 13829^2 .

It is a cyclic number.

It is not a de Polignac number, because 11278067677 - 2¹¹ = 11278065629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11278067617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5639033838 + 5639033839.

It is an arithmetic number, because the mean of its divisors is an integer number (5639033839).

Almost surely, 2^11278067677 is an apocalyptic number.

It is an amenable number.

11278067677 is a deficient number, since it is larger than the sum of its proper divisors (1).

11278067677 is an equidigital number, since it uses as much as digits as its factorization.

11278067677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1382976, while the sum is 52.

The spelling of 11278067677 in words is "eleven billion, two hundred seventy-eight million, sixty-seven thousand, six hundred seventy-seven".