77266708712 has 8 divisors (see below), whose sum is σ = 144875078850. Its totient is φ = 38633354352.

The previous prime is 77266708693. The next prime is 77266708781. The reversal of 77266708712 is 21780766277.

It can be written as a sum of positive squares in only one way, i.e., 55222180036 + 22044528676 = 234994^2 + 148474^2 .

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, 4829169287 + ... + 4829169302.

Almost surely, 2^77266708712 is an apocalyptic number.

It is an amenable number.

77266708712 is a deficient number, since it is larger than the sum of its proper divisors (67608370138).

77266708712 is a wasteful number, since it uses less digits than its factorization.

77266708712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9658338595 (or 9658338591 counting only the distinct ones).

The product of its (nonzero) digits is 2765952, while the sum is 53.

The spelling of 77266708712 in words is "seventy-seven billion, two hundred sixty-six million, seven hundred eight thousand, seven hundred twelve".