11000000077 has 4 divisors (see below), whose sum is σ = 12000000096. Its totient is φ = 10000000060.

The previous prime is 11000000057. The next prime is 11000000101. The reversal of 11000000077 is 77000000011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77000000011 = 11 ⋅7000000001.

It is a cyclic number.

It is not a de Polignac number, because 11000000077 - 2⁷ = 10999999949 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11000000057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 499999993 + ... + 500000014.

It is an arithmetic number, because the mean of its divisors is an integer number (3000000024).

Almost surely, 2^11000000077 is an apocalyptic number.

It is an amenable number.

11000000077 is a deficient number, since it is larger than the sum of its proper divisors (1000000019).

11000000077 is a wasteful number, since it uses less digits than its factorization.

11000000077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000000018.

The product of its (nonzero) digits is 49, while the sum is 16.

Adding to 11000000077 its reverse (77000000011), we get a palindrome (88000000088).

The spelling of 11000000077 in words is "eleven billion, seventy-seven", and thus it is an aban number and an uban number.