29896122551808 has 320 divisors, whose sum is σ = 88668638986752. Its totient is φ = 8902878167040.

The previous prime is 29896122551759. The next prime is 29896122551839. The reversal of 29896122551808 is 80815522169892.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78485460 + ... + 78865452.

Almost surely, 2^{29896122551808} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29896122551808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44334319493376).

29896122551808 is an abundant number, since it is smaller than the sum of its proper divisors (58772516434944).

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

29896122551808 is a wasteful number, since it uses less digits than its factorization.

29896122551808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380185 (or 380169 counting only the distinct ones).

The product of its (nonzero) digits is 49766400, while the sum is 66.

The spelling of 29896122551808 in words is "twenty-nine trillion, eight hundred ninety-six billion, one hundred twenty-two million, five hundred fifty-one thousand, eight hundred eight".