7784274245 has 54 divisors (see below), whose sum is σ = 10958958738. Its totient is φ = 5303020800.

The previous prime is 7784274241. The next prime is 7784274259. The reversal of 7784274245 is 5424724877.

It can be written as a sum of positive squares in 3 ways, for example, as 2607327844 + 5176946401 = 51062^2 + 71951^2 .

It is not a de Polignac number, because 7784274245 - 2² = 7784274241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7784274193 and 7784274202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7784274241) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 36892190 + ... + 36892400.

Almost surely, 2^7784274245 is an apocalyptic number.

It is an amenable number.

7784274245 is a deficient number, since it is larger than the sum of its proper divisors (3174684493).

7784274245 is a wasteful number, since it uses less digits than its factorization.

7784274245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483 (or 244 counting only the distinct ones).

The product of its digits is 3512320, while the sum is 50.

The square root of 7784274245 is about 88228.5341882092. The cubic root of 7784274245 is about 1981.8587997031.

The spelling of 7784274245 in words is "seven billion, seven hundred eighty-four million, two hundred seventy-four thousand, two hundred forty-five".