29655904890 has 32 divisors (see below), whose sum is σ = 73628455680. Its totient is φ = 7635543104.

The previous prime is 29655904867. The next prime is 29655904903. The reversal of 29655904890 is 9840955692.

It is a self number, because there is not a number n which added to its sum of digits gives 29655904890.

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 15 ways as a sum of consecutive naturals, for example, 17042754 + ... + 17044493.

It is an arithmetic number, because the mean of its divisors is an integer number (2300889240).

Almost surely, 2^29655904890 is an apocalyptic number.

29655904890 is an abundant number, since it is smaller than the sum of its proper divisors (43972550790).

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

29655904890 is a wasteful number, since it uses less digits than its factorization.

29655904890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34087286.

The product of its (nonzero) digits is 6998400, while the sum is 57.

The spelling of 29655904890 in words is "twenty-nine billion, six hundred fifty-five million, nine hundred four thousand, eight hundred ninety".