7825974636 has 48 divisors (see below), whose sum is σ = 19011122144. Its totient is φ = 2503374336.

The previous prime is 7825974631. The next prime is 7825974643. The reversal of 7825974636 is 6364795287.

It is a super-2 number, since 2×7825974636² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7825974631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88315 + ... + 153138.

Almost surely, 2^7825974636 is an apocalyptic number.

It is an amenable number.

7825974636 is an abundant number, since it is smaller than the sum of its proper divisors (11185147508).

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

7825974636 is a wasteful number, since it uses less digits than its factorization.

7825974636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241570 (or 241568 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 57.

The square root of 7825974636 is about 88464.5388616252. The cubic root of 7825974636 is about 1985.3914411384.

The spelling of 7825974636 in words is "seven billion, eight hundred twenty-five million, nine hundred seventy-four thousand, six hundred thirty-six".