7919905028 has 48 divisors (see below), whose sum is σ = 16009104384. Its totient is φ = 3358054560.

The previous prime is 7919905003. The next prime is 7919905067. The reversal of 7919905028 is 8205099197.

It is a happy 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, 3267425 + ... + 3269847.

It is an arithmetic number, because the mean of its divisors is an integer number (333523008).

Almost surely, 2^7919905028 is an apocalyptic number.

It is an amenable number.

7919905028 is an abundant number, since it is smaller than the sum of its proper divisors (8089199356).

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

7919905028 is a wasteful number, since it uses less digits than its factorization.

7919905028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3632 (or 3630 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 50.

The square root of 7919905028 is about 88993.8482593039. The cubic root of 7919905028 is about 1993.3030192542.

The spelling of 7919905028 in words is "seven billion, nine hundred nineteen million, nine hundred five thousand, twenty-eight".