7875988816 has 10 divisors (see below), whose sum is σ = 15259728362. Its totient is φ = 3937994400.

The previous prime is 7875988801. The next prime is 7875988903. The reversal of 7875988816 is 6188895787.

It can be written as a sum of positive squares in only one way, i.e., 7874787600 + 1201216 = 88740^2 + 1096^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246124635 + ... + 246124666.

Almost surely, 2^7875988816 is an apocalyptic number.

It is an amenable number.

7875988816 is a deficient number, since it is larger than the sum of its proper divisors (7383739546).

7875988816 is a wasteful number, since it uses less digits than its factorization.

7875988816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492249309 (or 492249303 counting only the distinct ones).

The product of its digits is 54190080, while the sum is 67.

The square root of 7875988816 is about 88746.7679186121. The cubic root of 7875988816 is about 1989.6118714776.

The spelling of 7875988816 in words is "seven billion, eight hundred seventy-five million, nine hundred eighty-eight thousand, eight hundred sixteen".