7844427412 has 12 divisors (see below), whose sum is σ = 13730789716. Its totient is φ = 3921344640.

The previous prime is 7844427401. The next prime is 7844427427. The reversal of 7844427412 is 2147244487.

It can be written as a sum of positive squares in 2 ways, for example, as 3633196176 + 4211231236 = 60276^2 + 64894^2 .

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, 196743 + ... + 233230.

Almost surely, 2^7844427412 is an apocalyptic number.

It is an amenable number.

7844427412 is a deficient number, since it is larger than the sum of its proper divisors (5886362304).

7844427412 is a wasteful number, since it uses less digits than its factorization.

7844427412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434538 (or 434536 counting only the distinct ones).

The product of its digits is 401408, while the sum is 43.

The square root of 7844427412 is about 88568.7722168485. The cubic root of 7844427412 is about 1986.9506602080.

The spelling of 7844427412 in words is "seven billion, eight hundred forty-four million, four hundred twenty-seven thousand, four hundred twelve".