77094080077 has 12 divisors (see below), whose sum is σ = 89731099740. Its totient is φ = 66043627776.

The previous prime is 77094080051. The next prime is 77094080087. The reversal of 77094080077 is 77008049077.

It can be written as a sum of positive squares in 2 ways, for example, as 68785028361 + 8309051716 = 262269^2 + 91154^2 .

It is a de Polignac number, because none of the positive numbers 2^k-77094080077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 77094080077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77094080087) 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 11 ways as a sum of consecutive naturals, for example, 352068 + ... + 527389.

It is an arithmetic number, because the mean of its divisors is an integer number (7477591645).

Almost surely, 2^77094080077 is an apocalyptic number.

It is an amenable number.

77094080077 is a deficient number, since it is larger than the sum of its proper divisors (12637019663).

77094080077 is a wasteful number, since it uses less digits than its factorization.

77094080077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881260 (or 881253 counting only the distinct ones).

The product of its (nonzero) digits is 691488, while the sum is 49.

The spelling of 77094080077 in words is "seventy-seven billion, ninety-four million, eighty thousand, seventy-seven".