29979595808 has 24 divisors (see below), whose sum is σ = 59282353872. Its totient is φ = 14923759936.

The previous prime is 29979595777. The next prime is 29979595813. The reversal of 29979595808 is 80859597992.

It is a super-2 number, since 2×29979595808² (a number of 22 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 2056310 + ... + 2070837.

It is an arithmetic number, because the mean of its divisors is an integer number (2470098078).

Almost surely, 2^29979595808 is an apocalyptic number.

It is an amenable number.

29979595808 is a deficient number, since it is larger than the sum of its proper divisors (29302758064).

29979595808 is a wasteful number, since it uses less digits than its factorization.

29979595808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4127384 (or 4127376 counting only the distinct ones).

The product of its (nonzero) digits is 146966400, while the sum is 71.

The spelling of 29979595808 in words is "twenty-nine billion, nine hundred seventy-nine million, five hundred ninety-five thousand, eight hundred eight".