29699189880 has 32 divisors (see below), whose sum is σ = 89097570000. Its totient is φ = 7919783936.

The previous prime is 29699189851. The next prime is 29699189917. The reversal of 29699189880 is 8898199692.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 123746505 + ... + 123746744.

Almost surely, 2^29699189880 is an apocalyptic number.

29699189880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29699189880 is an abundant number, since it is smaller than the sum of its proper divisors (59398380120).

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

29699189880 is a wasteful number, since it uses less digits than its factorization.

29699189880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247493263 (or 247493259 counting only the distinct ones).

The product of its (nonzero) digits is 40310784, while the sum is 69.

The spelling of 29699189880 in words is "twenty-nine billion, six hundred ninety-nine million, one hundred eighty-nine thousand, eight hundred eighty".