7980449798 has 8 divisors (see below), whose sum is σ = 11971770408. Its totient is φ = 3989859664.

The previous prime is 7980449783. The next prime is 7980449843. The reversal of 7980449798 is 8979440897.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154436 + ... + 199527.

It is an arithmetic number, because the mean of its divisors is an integer number (1496471301).

Almost surely, 2^7980449798 is an apocalyptic number.

7980449798 is a deficient number, since it is larger than the sum of its proper divisors (3991320610).

7980449798 is a wasteful number, since it uses less digits than its factorization.

7980449798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365238.

The product of its (nonzero) digits is 36578304, while the sum is 65.

The square root of 7980449798 is about 89333.3632972587. The cubic root of 7980449798 is about 1998.3694875759.

The spelling of 7980449798 in words is "seven billion, nine hundred eighty million, four hundred forty-nine thousand, seven hundred ninety-eight".