110778421077 has 6 divisors (see below), whose sum is σ = 160013274902. Its totient is φ = 73852280712.

The previous prime is 110778421073. The next prime is 110778421099. The reversal of 110778421077 is 770124877011.

It can be written as a sum of positive squares in only one way, i.e., 80479448721 + 30298972356 = 283689^2 + 174066^2 .

It is not a de Polignac number, because 110778421077 - 2² = 110778421073 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110778421073) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6154356718 + ... + 6154356735.

Almost surely, 2^110778421077 is an apocalyptic number.

It is an amenable number.

110778421077 is a deficient number, since it is larger than the sum of its proper divisors (49234853825).

110778421077 is a wasteful number, since it uses less digits than its factorization.

110778421077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12308713459 (or 12308713456 counting only the distinct ones).

The product of its (nonzero) digits is 153664, while the sum is 45.

The spelling of 110778421077 in words is "one hundred ten billion, seven hundred seventy-eight million, four hundred twenty-one thousand, seventy-seven".