129976544284 has 24 divisors (see below), whose sum is σ = 235678630320. Its totient is φ = 62681359104.

The previous prime is 129976544279. The next prime is 129976544333. The reversal of 129976544284 is 482445679921.

It is a super-2 number, since 2×129976544284² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 5183229 + ... + 5208244.

It is an arithmetic number, because the mean of its divisors is an integer number (9819942930).

Almost surely, 2^129976544284 is an apocalyptic number.

It is an amenable number.

129976544284 is a deficient number, since it is larger than the sum of its proper divisors (105702086036).

129976544284 is a wasteful number, since it uses less digits than its factorization.

129976544284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10391589 (or 10391587 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 61.

The spelling of 129976544284 in words is "one hundred twenty-nine billion, nine hundred seventy-six million, five hundred forty-four thousand, two hundred eighty-four".