29917739916 has 72 divisors (see below), whose sum is σ = 78524737200. Its totient is φ = 9592813440.

The previous prime is 29917739911. The next prime is 29917739939. The reversal of 29917739916 is 61993771992.

It is not an unprimeable number, because it can be changed into a prime (29917739911) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 227571 + ... + 334101.

It is an arithmetic number, because the mean of its divisors is an integer number (1090621350).

Almost surely, 2^29917739916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29917739916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39262368600).

29917739916 is an abundant number, since it is smaller than the sum of its proper divisors (48606997284).

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

29917739916 is a wasteful number, since it uses less digits than its factorization.

29917739916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106839 (or 106834 counting only the distinct ones).

The product of its digits is 11573604, while the sum is 63.

The spelling of 29917739916 in words is "twenty-nine billion, nine hundred seventeen million, seven hundred thirty-nine thousand, nine hundred sixteen".