29889900976 has 80 divisors (see below), whose sum is σ = 65810162880. Its totient is φ = 13047091200.

The previous prime is 29889900967. The next prime is 29889900979. The reversal of 29889900976 is 67900998892.

It is not an unprimeable number, because it can be changed into a prime (29889900979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 390676 + ... + 460876.

It is an arithmetic number, because the mean of its divisors is an integer number (822627036).

Almost surely, 2^29889900976 is an apocalyptic number.

29889900976 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29889900976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32905081440).

29889900976 is an abundant number, since it is smaller than the sum of its proper divisors (35920261904).

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

29889900976 is a wasteful number, since it uses less digits than its factorization.

29889900976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70334 (or 70328 counting only the distinct ones).

The product of its (nonzero) digits is 35271936, while the sum is 67.

The spelling of 29889900976 in words is "twenty-nine billion, eight hundred eighty-nine million, nine hundred thousand, nine hundred seventy-six".