129190282394 has 16 divisors (see below), whose sum is σ = 198882955368. Its totient is φ = 62913756672.

The previous prime is 129190282387. The next prime is 129190282399. The reversal of 129190282394 is 493282091921.

It can be written as a sum of positive squares in 4 ways, for example, as 128110305625 + 1079976769 = 357925^2 + 32863^2 .

It is not an unprimeable number, because it can be changed into a prime (129190282399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4433567 + ... + 4462610.

Almost surely, 2^129190282394 is an apocalyptic number.

129190282394 is a deficient number, since it is larger than the sum of its proper divisors (69692672974).

129190282394 is a wasteful number, since it uses less digits than its factorization.

129190282394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8896369.

The product of its (nonzero) digits is 559872, while the sum is 50.

The spelling of 129190282394 in words is "one hundred twenty-nine billion, one hundred ninety million, two hundred eighty-two thousand, three hundred ninety-four".