77388898703 has 4 divisors (see below), whose sum is σ = 81941186880. Its totient is φ = 72836610528.

The previous prime is 77388898679. The next prime is 77388898723. The reversal of 77388898703 is 30789888377.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30789888377 = 23 ⋅1338690799.

It is a cyclic number.

It is not a de Polignac number, because 77388898703 - 2¹⁰ = 77388897679 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 (77388898723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2276144063 + ... + 2276144096.

It is an arithmetic number, because the mean of its divisors is an integer number (20485296720).

Almost surely, 2^77388898703 is an apocalyptic number.

77388898703 is a deficient number, since it is larger than the sum of its proper divisors (4552288177).

77388898703 is a wasteful number, since it uses less digits than its factorization.

77388898703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4552288176.

The product of its (nonzero) digits is 113799168, while the sum is 68.

The spelling of 77388898703 in words is "seventy-seven billion, three hundred eighty-eight million, eight hundred ninety-eight thousand, seven hundred three".