29688752856 has 64 divisors (see below), whose sum is σ = 85014144000. Its totient is φ = 8463587328.

The previous prime is 29688752851. The next prime is 29688752867. The reversal of 29688752856 is 65825788692.

It is a super-2 number, since 2×29688752856² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29688752851) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 121360 + ... + 272223.

It is an arithmetic number, because the mean of its divisors is an integer number (1328346000).

Almost surely, 2^29688752856 is an apocalyptic number.

It is an amenable number.

29688752856 is an abundant number, since it is smaller than the sum of its proper divisors (55325391144).

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

29688752856 is a wasteful number, since it uses less digits than its factorization.

29688752856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394048 (or 394044 counting only the distinct ones).

The product of its digits is 116121600, while the sum is 66.

The spelling of 29688752856 in words is "twenty-nine billion, six hundred eighty-eight million, seven hundred fifty-two thousand, eight hundred fifty-six".