129542418306 has 48 divisors (see below), whose sum is σ = 321125648064. Its totient is φ = 36971279712.

The previous prime is 129542418281. The next prime is 129542418307. The reversal of 129542418306 is 603814245921.

129542418306 is a `hidden beast` number, since 1 + 29 + 542 + 4 + 1 + 83 + 0 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (129542418307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 452485 + ... + 681048.

It is an arithmetic number, because the mean of its divisors is an integer number (6690117668).

Almost surely, 2^129542418306 is an apocalyptic number.

129542418306 is an abundant number, since it is smaller than the sum of its proper divisors (191583229758).

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

129542418306 is a wasteful number, since it uses less digits than its factorization.

129542418306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134455 (or 1134452 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 129542418306 in words is "one hundred twenty-nine billion, five hundred forty-two million, four hundred eighteen thousand, three hundred six".