29945111128 has 32 divisors (see below), whose sum is σ = 57581798400. Its totient is φ = 14592632992.

The previous prime is 29945111117. The next prime is 29945111129. The reversal of 29945111128 is 82111154992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29945111129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76750 + ... + 256477.

It is an arithmetic number, because the mean of its divisors is an integer number (1799431200).

Almost surely, 2^29945111128 is an apocalyptic number.

It is an amenable number.

29945111128 is a deficient number, since it is larger than the sum of its proper divisors (27636687272).

29945111128 is a wasteful number, since it uses less digits than its factorization.

29945111128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333519 (or 333515 counting only the distinct ones).

The product of its digits is 51840, while the sum is 43.

The spelling of 29945111128 in words is "twenty-nine billion, nine hundred forty-five million, one hundred eleven thousand, one hundred twenty-eight".