129607182490 has 16 divisors (see below), whose sum is σ = 233450479080. Its totient is φ = 51807861760.

The previous prime is 129607182457. The next prime is 129607182491. The reversal of 129607182490 is 94281706921.

It can be written as a sum of positive squares in 4 ways, for example, as 75722381329 + 53884801161 = 275177^2 + 232131^2 .

It is not an unprimeable number, because it can be changed into a prime (129607182491) 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, 4360855 + ... + 4390474.

Almost surely, 2^129607182490 is an apocalyptic number.

129607182490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129607182490 is a deficient number, since it is larger than the sum of its proper divisors (103843296590).

129607182490 is a wasteful number, since it uses less digits than its factorization.

129607182490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8752817.

The product of its (nonzero) digits is 435456, while the sum is 49.

The spelling of 129607182490 in words is "one hundred twenty-nine billion, six hundred seven million, one hundred eighty-two thousand, four hundred ninety".