129765517224 has 32 divisors (see below), whose sum is σ = 370758621120. Its totient is φ = 37075862016.

The previous prime is 129765517213. The next prime is 129765517241. The reversal of 129765517224 is 422715567921.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 386206729 + ... + 386207064.

It is an arithmetic number, because the mean of its divisors is an integer number (11586206910).

Almost surely, 2^129765517224 is an apocalyptic number.

129765517224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

129765517224 is an abundant number, since it is smaller than the sum of its proper divisors (240993103896).

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

129765517224 is a wasteful number, since it uses less digits than its factorization.

129765517224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772413809 (or 772413805 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 51.

The spelling of 129765517224 in words is "one hundred twenty-nine billion, seven hundred sixty-five million, five hundred seventeen thousand, two hundred twenty-four".