308785858312 has 8 divisors (see below), whose sum is σ = 578973484350. Its totient is φ = 154392929152.

The previous prime is 308785858273. The next prime is 308785858327. The reversal of 308785858312 is 213858587803.

It can be written as a sum of positive squares in only one way, i.e., 175740377796 + 133045480516 = 419214^2 + 364754^2 .

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, 19299116137 + ... + 19299116152.

Almost surely, 2^308785858312 is an apocalyptic number.

It is an amenable number.

308785858312 is a deficient number, since it is larger than the sum of its proper divisors (270187626038).

308785858312 is a wasteful number, since it uses less digits than its factorization.

308785858312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38598232295 (or 38598232291 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 58.

The spelling of 308785858312 in words is "three hundred eight billion, seven hundred eighty-five million, eight hundred fifty-eight thousand, three hundred twelve".