129476483647 has 16 divisors (see below), whose sum is σ = 151206930432. Its totient is φ = 108557159040.

The previous prime is 129476483627. The next prime is 129476483701. The reversal of 129476483647 is 746384674921.

It is a cyclic number.

It is not a de Polignac number, because 129476483647 - 2⁷ = 129476483519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129476483627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 476247 + ... + 696967.

It is an arithmetic number, because the mean of its divisors is an integer number (9450433152).

Almost surely, 2^129476483647 is an apocalyptic number.

129476483647 is a deficient number, since it is larger than the sum of its proper divisors (21730446785).

129476483647 is a wasteful number, since it uses less digits than its factorization.

129476483647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222558.

The product of its digits is 48771072, while the sum is 61.

The spelling of 129476483647 in words is "one hundred twenty-nine billion, four hundred seventy-six million, four hundred eighty-three thousand, six hundred forty-seven".