77318183612 has 6 divisors (see below), whose sum is σ = 135306821328. Its totient is φ = 38659091804.

The previous prime is 77318183563. The next prime is 77318183617. The reversal of 77318183612 is 21638181377.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77318183617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9664772948 + ... + 9664772955.

It is an arithmetic number, because the mean of its divisors is an integer number (22551136888).

Almost surely, 2^77318183612 is an apocalyptic number.

It is an amenable number.

77318183612 is a deficient number, since it is larger than the sum of its proper divisors (57988637716).

77318183612 is a wasteful number, since it uses less digits than its factorization.

77318183612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19329545907 (or 19329545905 counting only the distinct ones).

The product of its digits is 338688, while the sum is 47.

The spelling of 77318183612 in words is "seventy-seven billion, three hundred eighteen million, one hundred eighty-three thousand, six hundred twelve".