29913793128 has 80 divisors (see below), whose sum is σ = 84599966880. Its totient is φ = 9874433952.

The previous prime is 29913793109. The next prime is 29913793159. The reversal of 29913793128 is 82139731992.

29913793128 is a `hidden beast` number, since 299 + 1 + 37 + 9 + 312 + 8 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 157350 + ... + 290837.

It is an arithmetic number, because the mean of its divisors is an integer number (1057499586).

Almost surely, 2^29913793128 is an apocalyptic number.

It is an amenable number.

29913793128 is an abundant number, since it is smaller than the sum of its proper divisors (54686173752).

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

29913793128 is a wasteful number, since it uses less digits than its factorization.

29913793128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448308 (or 448295 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 54.

The spelling of 29913793128 in words is "twenty-nine billion, nine hundred thirteen million, seven hundred ninety-three thousand, one hundred twenty-eight".