29809181932 has 12 divisors (see below), whose sum is σ = 52236663640. Its totient is φ = 14884420896.

The previous prime is 29809181923. The next prime is 29809181999. The reversal of 29809181932 is 23918190892.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 29809181932.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5039193 + ... + 5045104.

Almost surely, 2^29809181932 is an apocalyptic number.

It is an amenable number.

29809181932 is a deficient number, since it is larger than the sum of its proper divisors (22427481708).

29809181932 is a wasteful number, since it uses less digits than its factorization.

29809181932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10085040 (or 10085038 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 52.

The spelling of 29809181932 in words is "twenty-nine billion, eight hundred nine million, one hundred eighty-one thousand, nine hundred thirty-two".