12949135400 has 24 divisors (see below), whose sum is σ = 30106740270. Its totient is φ = 5179654080.

The previous prime is 12949135319. The next prime is 12949135403. The reversal of 12949135400 is 453194921.

It can be written as a sum of positive squares in 3 ways, for example, as 4919900164 + 8029235236 = 70142^2 + 89606^2 .

It is not an unprimeable number, because it can be changed into a prime (12949135403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32372639 + ... + 32373038.

Almost surely, 2^12949135400 is an apocalyptic number.

12949135400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12949135400 is an abundant number, since it is smaller than the sum of its proper divisors (17157604870).

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

12949135400 is a wasteful number, since it uses less digits than its factorization.

12949135400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64745693 (or 64745684 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The spelling of 12949135400 in words is "twelve billion, nine hundred forty-nine million, one hundred thirty-five thousand, four hundred".