29747839930 has 16 divisors (see below), whose sum is σ = 54191247264. Its totient is φ = 11755772560.

The previous prime is 29747839903. The next prime is 29747839951. The reversal of 29747839930 is 3993874792.

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, 17919556 + ... + 17921215.

It is an arithmetic number, because the mean of its divisors is an integer number (3386952954).

Almost surely, 2^29747839930 is an apocalyptic number.

29747839930 is a deficient number, since it is larger than the sum of its proper divisors (24443407334).

29747839930 is a wasteful number, since it uses less digits than its factorization.

29747839930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35840861.

The product of its (nonzero) digits is 20575296, while the sum is 61.

The spelling of 29747839930 in words is "twenty-nine billion, seven hundred forty-seven million, eight hundred thirty-nine thousand, nine hundred thirty".