129699740454235 has 128 divisors (see below), whose sum is σ = 188627309936640. Its totient is φ = 83762784889344.

The previous prime is 129699740454199. The next prime is 129699740454329. The reversal of 129699740454235 is 532454047996921.

It is a cyclic number.

It is not a de Polignac number, because 129699740454235 - 2¹¹ = 129699740452187 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 20512370784 + ... + 20512377106.

It is an arithmetic number, because the mean of its divisors is an integer number (1473650858880).

Almost surely, 2^{129699740454235} is an apocalyptic number.

129699740454235 is a deficient number, since it is larger than the sum of its proper divisors (58927569482405).

129699740454235 is a wasteful number, since it uses less digits than its factorization.

129699740454235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10505.

The product of its (nonzero) digits is 587865600, while the sum is 70.

The spelling of 129699740454235 in words is "one hundred twenty-nine trillion, six hundred ninety-nine billion, seven hundred forty million, four hundred fifty-four thousand, two hundred thirty-five".