7986120240 has 80 divisors (see below), whose sum is σ = 28293689088. Its totient is φ = 1825398528.

The previous prime is 7986120227. The next prime is 7986120281. The reversal of 7986120240 is 420216897.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2375142 + ... + 2378501.

Almost surely, 2^7986120240 is an apocalyptic number.

7986120240 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7986120240 is an abundant number, since it is smaller than the sum of its proper divisors (20307568848).

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

7986120240 is a wasteful number, since it uses less digits than its factorization.

7986120240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4753666 (or 4753660 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 7986120240 is about 89365.0951994122. The cubic root of 7986120240 is about 1998.8426837721.

The spelling of 7986120240 in words is "seven billion, nine hundred eighty-six million, one hundred twenty thousand, two hundred forty".