29683432644 has 24 divisors (see below), whose sum is σ = 72272706240. Its totient is φ = 9464282784.

The previous prime is 29683432637. The next prime is 29683432661. The reversal of 29683432644 is 44623438692.

It is a happy number.

It is a super-2 number, since 2×29683432644² (a number of 22 digits) contains 22 as substring.

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 in 7 ways as a sum of consecutive naturals, for example, 53774059 + ... + 53774610.

It is an arithmetic number, because the mean of its divisors is an integer number (3011362760).

Almost surely, 2^29683432644 is an apocalyptic number.

It is an amenable number.

29683432644 is an abundant number, since it is smaller than the sum of its proper divisors (42589273596).

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

29683432644 is a wasteful number, since it uses less digits than its factorization.

29683432644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107548699 (or 107548697 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 51.

The spelling of 29683432644 in words is "twenty-nine billion, six hundred eighty-three million, four hundred thirty-two thousand, six hundred forty-four".