29979580280 has 64 divisors (see below), whose sum is σ = 72693180000. Its totient is φ = 11061711360.

The previous prime is 29979580271. The next prime is 29979580297. The reversal of 29979580280 is 8208597992.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 760250 + ... + 798710.

Almost surely, 2^29979580280 is an apocalyptic number.

29979580280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29979580280 is an abundant number, since it is smaller than the sum of its proper divisors (42713599720).

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

29979580280 is a wasteful number, since it uses less digits than its factorization.

29979580280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39984 (or 39980 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 59.

The spelling of 29979580280 in words is "twenty-nine billion, nine hundred seventy-nine million, five hundred eighty thousand, two hundred eighty".