129475462805731 has 8 divisors (see below), whose sum is σ = 151120297013760. Its totient is φ = 108617713478088.

The previous prime is 129475462805723. The next prime is 129475462805783. The reversal of 129475462805731 is 137508264574921.

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

It is a cyclic number.

It is not a de Polignac number, because 129475462805731 - 2³ = 129475462805723 is a prime.

It is a super-2 number, since 2×129475462805731² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129475462805131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196771219741 + ... + 196771220398.

It is an arithmetic number, because the mean of its divisors is an integer number (18890037126720).

It is a 1-persistent number, because it is pandigital, but 2⋅129475462805731 = 258950925611462 is not.

Almost surely, 2^{129475462805731} is an apocalyptic number.

129475462805731 is a deficient number, since it is larger than the sum of its proper divisors (21644834208029).

129475462805731 is an equidigital number, since it uses as much as digits as its factorization.

129475462805731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393542440193.

The product of its (nonzero) digits is 101606400, while the sum is 64.

The spelling of 129475462805731 in words is "one hundred twenty-nine trillion, four hundred seventy-five billion, four hundred sixty-two million, eight hundred five thousand, seven hundred thirty-one".