29682875029921 has 4 divisors (see below), whose sum is σ = 29727781044244. Its totient is φ = 29637969015600.

The previous prime is 29682875029883. The next prime is 29682875029931. The reversal of 29682875029921 is 12992057828692.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22560942026896 + 7121933003025 = 4749836^2 + 2668695^2 .

It is a cyclic number.

It is not a de Polignac number, because 29682875029921 - 2⁷ = 29682875029793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29682875029931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22453006170 + ... + 22453007491.

It is an arithmetic number, because the mean of its divisors is an integer number (7431945261061).

Almost surely, 2^{29682875029921} is an apocalyptic number.

It is an amenable number.

29682875029921 is a deficient number, since it is larger than the sum of its proper divisors (44906014323).

29682875029921 is an equidigital number, since it uses as much as digits as its factorization.

29682875029921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44906014322.

The product of its (nonzero) digits is 156764160, while the sum is 70.

The spelling of 29682875029921 in words is "twenty-nine trillion, six hundred eighty-two billion, eight hundred seventy-five million, twenty-nine thousand, nine hundred twenty-one".