7989740318 has 8 divisors (see below), whose sum is σ = 13696697712. Its totient is φ = 3424174416.

The previous prime is 7989740303. The next prime is 7989740321. The reversal of 7989740318 is 8130479897.

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

It is a super-2 number, since 2×7989740318² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 285347855 + ... + 285347882.

It is an arithmetic number, because the mean of its divisors is an integer number (1712087214).

Almost surely, 2^7989740318 is an apocalyptic number.

7989740318 is a deficient number, since it is larger than the sum of its proper divisors (5706957394).

7989740318 is a wasteful number, since it uses less digits than its factorization.

7989740318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570695746.

The product of its (nonzero) digits is 3048192, while the sum is 56.

The square root of 7989740318 is about 89385.3473338891. The cubic root of 7989740318 is about 1999.1446607495.

The spelling of 7989740318 in words is "seven billion, nine hundred eighty-nine million, seven hundred forty thousand, three hundred eighteen".