129449946010 has 64 divisors (see below), whose sum is σ = 299877064704. Its totient is φ = 39046478400.

The previous prime is 129449946001. The next prime is 129449946071. The reversal of 129449946010 is 10649944921.

It is a super-3 number, since 3×129449946010³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2687692 + ... + 2735431.

It is an arithmetic number, because the mean of its divisors is an integer number (4685579136).

Almost surely, 2^129449946010 is an apocalyptic number.

129449946010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129449946010 is an abundant number, since it is smaller than the sum of its proper divisors (170427118694).

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

129449946010 is a wasteful number, since it uses less digits than its factorization.

129449946010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5423179.

The product of its (nonzero) digits is 559872, while the sum is 49.

The spelling of 129449946010 in words is "one hundred twenty-nine billion, four hundred forty-nine million, nine hundred forty-six thousand, ten".