29895654405128 has 60 divisors (see below), whose sum is σ = 59566612223265. Its totient is φ = 14066440013824.

The previous prime is 29895654405121. The next prime is 29895654405157. The reversal of 29895654405128 is 82150445659892.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 8 ways, for example, as 19992183872644 + 9903470532484 = 4471262^2 + 3146978^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=3866242.

It is a Harshad number since it is a multiple of its sum of digits (68).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29895654405121) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 4469372408 + ... + 4469379096.

Almost surely, 2^{29895654405128} is an apocalyptic number.

It is an amenable number.

29895654405128 is a deficient number, since it is larger than the sum of its proper divisors (29670957818137).

29895654405128 is an frugal number, since it uses more digits than its factorization.

29895654405128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13452 (or 6708 counting only the distinct ones).

The product of its (nonzero) digits is 248832000, while the sum is 68.

The spelling of 29895654405128 in words is "twenty-nine trillion, eight hundred ninety-five billion, six hundred fifty-four million, four hundred five thousand, one hundred twenty-eight".