129337233842 has 8 divisors (see below), whose sum is σ = 197186274732. Its totient is φ = 63608475600.

The previous prime is 129337233791. The next prime is 129337233847. The reversal of 129337233842 is 248332733921.

It can be written as a sum of positive squares in 2 ways, for example, as 129255349441 + 81884401 = 359521^2 + 9049^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (129337233847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 530070509 + ... + 530070752.

Almost surely, 2^129337233842 is an apocalyptic number.

129337233842 is a deficient number, since it is larger than the sum of its proper divisors (67849040890).

129337233842 is a wasteful number, since it uses less digits than its factorization.

129337233842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060141324.

The product of its digits is 1306368, while the sum is 47.

The spelling of 129337233842 in words is "one hundred twenty-nine billion, three hundred thirty-seven million, two hundred thirty-three thousand, eight hundred forty-two".