129495426464 has 12 divisors (see below), whose sum is σ = 254944120914. Its totient is φ = 64747713216.

The previous prime is 129495426439. The next prime is 129495426469. The reversal of 129495426464 is 464624594921.

It can be written as a sum of positive squares in only one way, i.e., 123552250000 + 5943176464 = 351500^2 + 77092^2 .

It is not an unprimeable number, because it can be changed into a prime (129495426469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2023366007 + ... + 2023366070.

Almost surely, 2^129495426464 is an apocalyptic number.

It is an amenable number.

129495426464 is a deficient number, since it is larger than the sum of its proper divisors (125448694450).

129495426464 is an equidigital number, since it uses as much as digits as its factorization.

129495426464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4046732087 (or 4046732079 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 56.

The spelling of 129495426464 in words is "one hundred twenty-nine billion, four hundred ninety-five million, four hundred twenty-six thousand, four hundred sixty-four".