129711045770 has 16 divisors (see below), whose sum is σ = 233990787528. Its totient is φ = 51770883840.

The previous prime is 129711045757. The next prime is 129711045791. The reversal of 129711045770 is 77540117921.

It can be written as a sum of positive squares in 4 ways, for example, as 124879544689 + 4831501081 = 353383^2 + 69509^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14187011 + ... + 14196150.

Almost surely, 2^129711045770 is an apocalyptic number.

129711045770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129711045770 is a deficient number, since it is larger than the sum of its proper divisors (104279741758).

129711045770 is a wasteful number, since it uses less digits than its factorization.

129711045770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28383625.

The product of its (nonzero) digits is 123480, while the sum is 44.

The spelling of 129711045770 in words is "one hundred twenty-nine billion, seven hundred eleven million, forty-five thousand, seven hundred seventy".