29557223512890 has 32 divisors (see below), whose sum is σ = 70938243222336. Its totient is φ = 7881825515520.

The previous prime is 29557223512841. The next prime is 29557223512903. The reversal of 29557223512890 is 9821532275592.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3896172 + ... + 8619431.

It is an arithmetic number, because the mean of its divisors is an integer number (2216820100698).

Almost surely, 2^{29557223512890} is an apocalyptic number.

29557223512890 is an abundant number, since it is smaller than the sum of its proper divisors (41381019709446).

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

29557223512890 is a wasteful number, since it uses less digits than its factorization.

29557223512890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12594334.

The product of its (nonzero) digits is 27216000, while the sum is 60.

The spelling of 29557223512890 in words is "twenty-nine trillion, five hundred fifty-seven billion, two hundred twenty-three million, five hundred twelve thousand, eight hundred ninety".