77705349606 has 48 divisors (see below), whose sum is σ = 184412311200. Its totient is φ = 23537520384.

The previous prime is 77705349587. The next prime is 77705349619. The reversal of 77705349606 is 60694350777.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4369386 + ... + 4387133.

It is an arithmetic number, because the mean of its divisors is an integer number (3841923150).

Almost surely, 2^77705349606 is an apocalyptic number.

77705349606 is an abundant number, since it is smaller than the sum of its proper divisors (106706961594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77705349606 is a wasteful number, since it uses less digits than its factorization.

77705349606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8756573 (or 8756570 counting only the distinct ones).

The product of its (nonzero) digits is 6667920, while the sum is 54.

The spelling of 77705349606 in words is "seventy-seven billion, seven hundred five million, three hundred forty-nine thousand, six hundred six".