77367400072 has 8 divisors (see below), whose sum is σ = 145063875150. Its totient is φ = 38683700032.

The previous prime is 77367400067. The next prime is 77367400093. The reversal of 77367400072 is 27000476377.

It can be written as a sum of positive squares in only one way, i.e., 77191731556 + 175668516 = 277834^2 + 13254^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4835462497 + ... + 4835462512.

Almost surely, 2^77367400072 is an apocalyptic number.

It is an amenable number.

77367400072 is a deficient number, since it is larger than the sum of its proper divisors (67696475078).

77367400072 is a wasteful number, since it uses less digits than its factorization.

77367400072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9670925015 (or 9670925011 counting only the distinct ones).

The product of its (nonzero) digits is 345744, while the sum is 43.

The spelling of 77367400072 in words is "seventy-seven billion, three hundred sixty-seven million, four hundred thousand, seventy-two".