77703368312 has 8 divisors (see below), whose sum is σ = 145693815600. Its totient is φ = 38851684152.

The previous prime is 77703368287. The next prime is 77703368329. The reversal of 77703368312 is 21386330777.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4856460512 + ... + 4856460527.

It is an arithmetic number, because the mean of its divisors is an integer number (18211726950).

Almost surely, 2^77703368312 is an apocalyptic number.

It is an amenable number.

77703368312 is a deficient number, since it is larger than the sum of its proper divisors (67990447288).

77703368312 is a wasteful number, since it uses less digits than its factorization.

77703368312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9712921045 (or 9712921041 counting only the distinct ones).

The product of its (nonzero) digits is 889056, while the sum is 47.

The spelling of 77703368312 in words is "seventy-seven billion, seven hundred three million, three hundred sixty-eight thousand, three hundred twelve".