29906528780 has 24 divisors (see below), whose sum is σ = 65534307552. Its totient is φ = 11442497792.

The previous prime is 29906528779. The next prime is 29906528791. The reversal of 29906528780 is 8782560992.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32506637 + ... + 32507556.

It is an arithmetic number, because the mean of its divisors is an integer number (2730596148).

Almost surely, 2^29906528780 is an apocalyptic number.

29906528780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29906528780 is an abundant number, since it is smaller than the sum of its proper divisors (35627778772).

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

29906528780 is a wasteful number, since it uses less digits than its factorization.

29906528780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65014225 (or 65014223 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 56.

The spelling of 29906528780 in words is "twenty-nine billion, nine hundred six million, five hundred twenty-eight thousand, seven hundred eighty".