7979558772200 has 48 divisors (see below), whose sum is σ = 19053892383180. Its totient is φ = 3105558005760.

The previous prime is 7979558772187. The next prime is 7979558772203. The reversal of 7979558772200 is 22778559797.

It can be written as a sum of positive squares in 6 ways, for example, as 2865348394756 + 5114210377444 = 1692734^2 + 2261462^2 .

It is not an unprimeable number, because it can be changed into a prime (7979558772203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 539151977 + ... + 539166776.

Almost surely, 2^{7979558772200} is an apocalyptic number.

It is an amenable number.

7979558772200 is an abundant number, since it is smaller than the sum of its proper divisors (11074333610980).

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

7979558772200 is a wasteful number, since it uses less digits than its factorization.

7979558772200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078318806 (or 1078318797 counting only the distinct ones).

The product of its (nonzero) digits is 155584800, while the sum is 68.

The spelling of 7979558772200 in words is "seven trillion, nine hundred seventy-nine billion, five hundred fifty-eight million, seven hundred seventy-two thousand, two hundred".