29807695812 has 12 divisors (see below), whose sum is σ = 69551290256. Its totient is φ = 9935898600.

The previous prime is 29807695781. The next prime is 29807695817. The reversal of 29807695812 is 21859670892.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (29807695817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1241987314 + ... + 1241987337.

Almost surely, 2^29807695812 is an apocalyptic number.

It is an amenable number.

29807695812 is an abundant number, since it is smaller than the sum of its proper divisors (39743594444).

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

29807695812 is a wasteful number, since it uses less digits than its factorization.

29807695812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2483974658 (or 2483974656 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 57.

The spelling of 29807695812 in words is "twenty-nine billion, eight hundred seven million, six hundred ninety-five thousand, eight hundred twelve".