129877357943 has 8 divisors (see below), whose sum is σ = 131854147440. Its totient is φ = 127901695680.

The previous prime is 129877357937. The next prime is 129877357957. The reversal of 129877357943 is 349753778921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129877357943 - 2⁶ = 129877357879 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 129877357943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129877357963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48158 + ... + 511931.

It is an arithmetic number, because the mean of its divisors is an integer number (16481768430).

Almost surely, 2^129877357943 is an apocalyptic number.

129877357943 is a deficient number, since it is larger than the sum of its proper divisors (1976789497).

129877357943 is an equidigital number, since it uses as much as digits as its factorization.

129877357943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563617.

The product of its digits is 80015040, while the sum is 65.

The spelling of 129877357943 in words is "one hundred twenty-nine billion, eight hundred seventy-seven million, three hundred fifty-seven thousand, nine hundred forty-three".