77734867850312 has 8 divisors (see below), whose sum is σ = 145752877219350. Its totient is φ = 38867433925152.

The previous prime is 77734867850249. The next prime is 77734867850329. The reversal of 77734867850312 is 21305876843777.

It can be written as a sum of positive squares in only one way, i.e., 68239065361636 + 9495802488676 = 8260694^2 + 3081526^2 .

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, 4858429240637 + ... + 4858429240652.

Almost surely, 2^{77734867850312} is an apocalyptic number.

It is an amenable number.

77734867850312 is a deficient number, since it is larger than the sum of its proper divisors (68018009369038).

77734867850312 is a wasteful number, since it uses less digits than its factorization.

77734867850312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9716858481295 (or 9716858481291 counting only the distinct ones).

The product of its (nonzero) digits is 331914240, while the sum is 68.

The spelling of 77734867850312 in words is "seventy-seven trillion, seven hundred thirty-four billion, eight hundred sixty-seven million, eight hundred fifty thousand, three hundred twelve".