29949690781032 has 128 divisors (see below), whose sum is σ = 83680189326720. Its totient is φ = 8853565952000.

The previous prime is 29949690781019. The next prime is 29949690781039. The reversal of 29949690781032 is 23018709694992.

It is not an unprimeable number, because it can be changed into a prime (29949690781039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136846732 + ... + 137065412.

It is an arithmetic number, because the mean of its divisors is an integer number (653751479115).

Almost surely, 2^{29949690781032} is an apocalyptic number.

29949690781032 is a gapful number since it is divisible by the number (22) 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 29949690781032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41840094663360).

29949690781032 is an abundant number, since it is smaller than the sum of its proper divisors (53730498545688).

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

29949690781032 is a wasteful number, since it uses less digits than its factorization.

29949690781032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231395 (or 231391 counting only the distinct ones).

The product of its (nonzero) digits is 105815808, while the sum is 69.

The spelling of 29949690781032 in words is "twenty-nine trillion, nine hundred forty-nine billion, six hundred ninety million, seven hundred eighty-one thousand, thirty-two".