7812817896 has 64 divisors (see below), whose sum is σ = 21482092800. Its totient is φ = 2352791808.

The previous prime is 7812817829. The next prime is 7812817907. The reversal of 7812817896 is 6987182187.

It is a super-2 number, since 2×7812817896² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251731 + ... + 281058.

It is an arithmetic number, because the mean of its divisors is an integer number (335657700).

Almost surely, 2^7812817896 is an apocalyptic number.

It is an amenable number.

7812817896 is an abundant number, since it is smaller than the sum of its proper divisors (13669274904).

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

7812817896 is a wasteful number, since it uses less digits than its factorization.

7812817896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532858 (or 532854 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 57.

The square root of 7812817896 is about 88390.1459213639. The cubic root of 7812817896 is about 1984.2782281123.

The spelling of 7812817896 in words is "seven billion, eight hundred twelve million, eight hundred seventeen thousand, eight hundred ninety-six".