129426784584 has 16 divisors (see below), whose sum is σ = 323566961520. Its totient is φ = 43142261520.

The previous prime is 129426784579. The next prime is 129426784603. The reversal of 129426784584 is 485487624921.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2696391322 + ... + 2696391369.

It is an arithmetic number, because the mean of its divisors is an integer number (20222935095).

Almost surely, 2^129426784584 is an apocalyptic number.

It is an amenable number.

129426784584 is an abundant number, since it is smaller than the sum of its proper divisors (194140176936).

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

129426784584 is a wasteful number, since it uses less digits than its factorization.

129426784584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5392782700 (or 5392782696 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 60.

The spelling of 129426784584 in words is "one hundred twenty-nine billion, four hundred twenty-six million, seven hundred eighty-four thousand, five hundred eighty-four".