129549944886 has 12 divisors (see below), whose sum is σ = 259101653076. Its totient is φ = 43183021080.

The previous prime is 129549944863. The next prime is 129549944903. The reversal of 129549944886 is 688449945921.

It is a self number, because there is not a number n which added to its sum of digits gives 129549944886.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 808176 + ... + 955116.

It is an arithmetic number, because the mean of its divisors is an integer number (21591804423).

Almost surely, 2^129549944886 is an apocalyptic number.

129549944886 is an abundant number, since it is smaller than the sum of its proper divisors (129551708190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129549944886 is an frugal number, since it uses more digits than its factorization.

129549944886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293887 (or 146946 counting only the distinct ones).

The product of its digits is 179159040, while the sum is 69.

The spelling of 129549944886 in words is "one hundred twenty-nine billion, five hundred forty-nine million, nine hundred forty-four thousand, eight hundred eighty-six".