29905902418 has 16 divisors (see below), whose sum is σ = 52136199360. Its totient is φ = 12599580816.

The previous prime is 29905902409. The next prime is 29905902457. The reversal of 29905902418 is 81420950992.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18102021 + ... + 18103672.

It is an arithmetic number, because the mean of its divisors is an integer number (3258512460).

Almost surely, 2^29905902418 is an apocalyptic number.

29905902418 is a deficient number, since it is larger than the sum of its proper divisors (22230296942).

29905902418 is a wasteful number, since it uses less digits than its factorization.

29905902418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36205761.

The product of its (nonzero) digits is 466560, while the sum is 49.

The spelling of 29905902418 in words is "twenty-nine billion, nine hundred five million, nine hundred two thousand, four hundred eighteen".