29785276868 has 24 divisors (see below), whose sum is σ = 53124966720. Its totient is φ = 14606897760.

The previous prime is 29785276867. The next prime is 29785276891. The reversal of 29785276868 is 86867258792.

It is a junction number, because it is equal to n+sod(n) for n = 29785276798 and 29785276807.

It is not an unprimeable number, because it can be changed into a prime (29785276867) 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, 682463 + ... + 724793.

It is an arithmetic number, because the mean of its divisors is an integer number (2213540280).

Almost surely, 2^29785276868 is an apocalyptic number.

It is an amenable number.

29785276868 is a deficient number, since it is larger than the sum of its proper divisors (23339689852).

29785276868 is a wasteful number, since it uses less digits than its factorization.

29785276868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45707 (or 45705 counting only the distinct ones).

The product of its digits is 162570240, while the sum is 68.

The spelling of 29785276868 in words is "twenty-nine billion, seven hundred eighty-five million, two hundred seventy-six thousand, eight hundred sixty-eight".