308681025012 has 36 divisors (see below), whose sum is σ = 809176187456. Its totient is φ = 102893674680.

The previous prime is 308681025007. The next prime is 308681025043. The reversal of 308681025012 is 210520186803.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 158785564 + ... + 158787507.

Almost surely, 2^308681025012 is an apocalyptic number.

It is an amenable number.

308681025012 is an abundant number, since it is smaller than the sum of its proper divisors (500495162444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

308681025012 is a wasteful number, since it uses less digits than its factorization.

308681025012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317573090 (or 317573076 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The spelling of 308681025012 in words is "three hundred eight billion, six hundred eighty-one million, twenty-five thousand, twelve".