129491482292 has 12 divisors (see below), whose sum is σ = 226623600000. Its totient is φ = 64741882296.

The previous prime is 129491482291. The next prime is 129491482331. The reversal of 129491482292 is 292284194921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129491482291) by changing a digit.

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, 888542 + ... + 1023957.

It is an arithmetic number, because the mean of its divisors is an integer number (18885300000).

Almost surely, 2^129491482292 is an apocalyptic number.

It is an amenable number.

129491482292 is a deficient number, since it is larger than the sum of its proper divisors (97132117708).

129491482292 is a wasteful number, since it uses less digits than its factorization.

129491482292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1929430 (or 1929428 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 53.

The spelling of 129491482292 in words is "one hundred twenty-nine billion, four hundred ninety-one million, four hundred eighty-two thousand, two hundred ninety-two".