29854378055057 has 8 divisors (see below), whose sum is σ = 29857915288296. Its totient is φ = 29850841066752.

The previous prime is 29854378055027. The next prime is 29854378055063. The reversal of 29854378055057 is 75055087345892.

It is a Cunningham number, because it is equal to 5463916²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 29854378055056 = 1^2 + 5463916^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29854378055057 - 2²⁰ = 29854377006481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29854378055027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351280553 + ... + 351365529.

It is an arithmetic number, because the mean of its divisors is an integer number (3732239411037).

Almost surely, 2^{29854378055057} is an apocalyptic number.

It is an amenable number.

29854378055057 is a deficient number, since it is larger than the sum of its proper divisors (3537233239).

29854378055057 is a wasteful number, since it uses less digits than its factorization.

29854378055057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122467.

The product of its (nonzero) digits is 423360000, while the sum is 68.

The spelling of 29854378055057 in words is "twenty-nine trillion, eight hundred fifty-four billion, three hundred seventy-eight million, fifty-five thousand, fifty-seven".