7801628712 has 64 divisors (see below), whose sum is σ = 20664072000. Its totient is φ = 2446064640.

The previous prime is 7801628699. The next prime is 7801628767. The reversal of 7801628712 is 2178261087.

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, 790287 + ... + 800097.

It is an arithmetic number, because the mean of its divisors is an integer number (322876125).

Almost surely, 2^7801628712 is an apocalyptic number.

It is an amenable number.

7801628712 is an abundant number, since it is smaller than the sum of its proper divisors (12862443288).

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

7801628712 is a wasteful number, since it uses less digits than its factorization.

7801628712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11786 (or 11782 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 42.

The square root of 7801628712 is about 88326.8289479476. The cubic root of 7801628712 is about 1983.3305093731.

Adding to 7801628712 its reverse (2178261087), we get a palindrome (9979889799).

The spelling of 7801628712 in words is "seven billion, eight hundred one million, six hundred twenty-eight thousand, seven hundred twelve".