129734335401 has 16 divisors (see below), whose sum is σ = 188745094080. Its totient is φ = 78609950720.

The previous prime is 129734335387. The next prime is 129734335447. The reversal of 129734335401 is 104533437921.

It is a cyclic number.

It is not a de Polignac number, because 129734335401 - 2⁶ = 129734335337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129734335201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266436 + ... + 574853.

It is an arithmetic number, because the mean of its divisors is an integer number (11796568380).

Almost surely, 2^129734335401 is an apocalyptic number.

129734335401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

129734335401 is a deficient number, since it is larger than the sum of its proper divisors (59010758679).

129734335401 is a wasteful number, since it uses less digits than its factorization.

129734335401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845976.

The product of its (nonzero) digits is 272160, while the sum is 42.

The spelling of 129734335401 in words is "one hundred twenty-nine billion, seven hundred thirty-four million, three hundred thirty-five thousand, four hundred one".