29980728706 has 16 divisors (see below), whose sum is σ = 45217543680. Its totient is φ = 14908252720.

The previous prime is 29980728697. The next prime is 29980728719. The reversal of 29980728706 is 60782708992.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2280480 + ... + 2293588.

It is an arithmetic number, because the mean of its divisors is an integer number (2826096480).

Almost surely, 2^29980728706 is an apocalyptic number.

29980728706 is a deficient number, since it is larger than the sum of its proper divisors (15236814974).

29980728706 is a wasteful number, since it uses less digits than its factorization.

29980728706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19289.

The product of its (nonzero) digits is 6096384, while the sum is 58.

The spelling of 29980728706 in words is "twenty-nine billion, nine hundred eighty million, seven hundred twenty-eight thousand, seven hundred six".