29931476812 has 6 divisors (see below), whose sum is σ = 52380084428. Its totient is φ = 14965738404.

The previous prime is 29931476803. The next prime is 29931476837. The reversal of 29931476812 is 21867413992.

It is a self number, because there is not a number n which added to its sum of digits gives 29931476812.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3741434598 + ... + 3741434605.

Almost surely, 2^29931476812 is an apocalyptic number.

It is an amenable number.

29931476812 is a deficient number, since it is larger than the sum of its proper divisors (22448607616).

29931476812 is a wasteful number, since it uses less digits than its factorization.

29931476812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7482869207 (or 7482869205 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 52.

The spelling of 29931476812 in words is "twenty-nine billion, nine hundred thirty-one million, four hundred seventy-six thousand, eight hundred twelve".