7825686396 has 48 divisors (see below), whose sum is σ = 19942785408. Its totient is φ = 2368699200.

The previous prime is 7825686377. The next prime is 7825686419. The reversal of 7825686396 is 6936865287.

It is a happy number.

It is a super-2 number, since 2×7825686396² (a number of 21 digits) contains 22 as substring.

Its product of digits (26127360) is a multiple of the sum of its prime divisors (68040).

It is a congruent number.

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, 82986 + ... + 150126.

It is an arithmetic number, because the mean of its divisors is an integer number (415474696).

Almost surely, 2^7825686396 is an apocalyptic number.

It is an amenable number.

7825686396 is an abundant number, since it is smaller than the sum of its proper divisors (12117099012).

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

7825686396 is a wasteful number, since it uses less digits than its factorization.

7825686396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68042 (or 68040 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 60.

The square root of 7825686396 is about 88462.9097192716. The cubic root of 7825686396 is about 1985.3670660592.

The spelling of 7825686396 in words is "seven billion, eight hundred twenty-five million, six hundred eighty-six thousand, three hundred ninety-six".