4249351329920 has 32 divisors (see below), whose sum is σ = 10158605524620. Its totient is φ = 1699740531712.

The previous prime is 4249351329907. The next prime is 4249351329953. The reversal of 4249351329920 is 299231539424.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3832479659584 + 416871670336 = 1957672^2 + 645656^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3319805087 + ... + 3319806366.

Almost surely, 2^{4249351329920} is an apocalyptic number.

4249351329920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4249351329920 is an abundant number, since it is smaller than the sum of its proper divisors (5909254194700).

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

4249351329920 is an equidigital number, since it uses as much as digits as its factorization.

4249351329920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6639611472 (or 6639611460 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 53.

The spelling of 4249351329920 in words is "four trillion, two hundred forty-nine billion, three hundred fifty-one million, three hundred twenty-nine thousand, nine hundred twenty".