29688916500 has 96 divisors (see below), whose sum is σ = 96060182400. Its totient is φ = 7917040800.

The previous prime is 29688916493. The next prime is 29688916531. The reversal of 29688916500 is 561988692.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 1086090 + ... + 1113089.

It is an arithmetic number, because the mean of its divisors is an integer number (1000626900).

Almost surely, 2^29688916500 is an apocalyptic number.

29688916500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29688916500 is an abundant number, since it is smaller than the sum of its proper divisors (66371265900).

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

29688916500 is a wasteful number, since it uses less digits than its factorization.

29688916500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2199207 (or 2199189 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 54.

The spelling of 29688916500 in words is "twenty-nine billion, six hundred eighty-eight million, nine hundred sixteen thousand, five hundred".