77308161304 has 24 divisors (see below), whose sum is σ = 159328288980. Its totient is φ = 35140072880.

The previous prime is 77308161299. The next prime is 77308161349. The reversal of 77308161304 is 40316180377.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39930934 + ... + 39932869.

Almost surely, 2^77308161304 is an apocalyptic number.

It is an amenable number.

77308161304 is an abundant number, since it is smaller than the sum of its proper divisors (82020127676).

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

77308161304 is a wasteful number, since it uses less digits than its factorization.

77308161304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79863831 (or 79863816 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The spelling of 77308161304 in words is "seventy-seven billion, three hundred eight million, one hundred sixty-one thousand, three hundred four".