77350773077 has 4 divisors (see below), whose sum is σ = 77351329440. Its totient is φ = 77350216716.

The previous prime is 77350772981. The next prime is 77350773079. The reversal of 77350773077 is 77037705377.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 77037705377 = 1153 ⋅66815009.

It is a cyclic number.

It is not a de Polignac number, because 77350773077 - 2¹⁸ = 77350510933 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 (77350773079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130358 + ... + 414360.

It is an arithmetic number, because the mean of its divisors is an integer number (19337832360).

Almost surely, 2^77350773077 is an apocalyptic number.

It is an amenable number.

77350773077 is a deficient number, since it is larger than the sum of its proper divisors (556363).

77350773077 is a wasteful number, since it uses less digits than its factorization.

77350773077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556362.

The product of its (nonzero) digits is 5294205, while the sum is 53.

The spelling of 77350773077 in words is "seventy-seven billion, three hundred fifty million, seven hundred seventy-three thousand, seventy-seven".