129857924564 has 12 divisors (see below), whose sum is σ = 229989336864. Its totient is φ = 64146685464.

The previous prime is 129857924527. The next prime is 129857924671. The reversal of 129857924564 is 465429758921.

It is a super-3 number, since 3×129857924564³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 129857924497 and 129857924506.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195568832 + ... + 195569495.

It is an arithmetic number, because the mean of its divisors is an integer number (19165778072).

Almost surely, 2^129857924564 is an apocalyptic number.

It is an amenable number.

129857924564 is a deficient number, since it is larger than the sum of its proper divisors (100131412300).

129857924564 is a wasteful number, since it uses less digits than its factorization.

129857924564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391138414 (or 391138412 counting only the distinct ones).

The product of its digits is 43545600, while the sum is 62.

The spelling of 129857924564 in words is "one hundred twenty-nine billion, eight hundred fifty-seven million, nine hundred twenty-four thousand, five hundred sixty-four".