29997974695812 has 24 divisors (see below), whose sum is σ = 69995407759200. Its totient is φ = 9999305831616.

The previous prime is 29997974695757. The next prime is 29997974695813. The reversal of 29997974695812 is 21859647979992.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (29997974695813) 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 7 ways as a sum of consecutive naturals, for example, 5115864 + ... + 9282672.

It is an arithmetic number, because the mean of its divisors is an integer number (2916475323300).

Almost surely, 2^{29997974695812} is an apocalyptic number.

It is an amenable number.

29997974695812 is an abundant number, since it is smaller than the sum of its proper divisors (39997433063388).

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

29997974695812 is a wasteful number, since it uses less digits than its factorization.

29997974695812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4766755 (or 4766753 counting only the distinct ones).

The product of its digits is 11110659840, while the sum is 87.

The spelling of 29997974695812 in words is "twenty-nine trillion, nine hundred ninety-seven billion, nine hundred seventy-four million, six hundred ninety-five thousand, eight hundred twelve".