7877699668 has 12 divisors (see below), whose sum is σ = 14511552160. Its totient is φ = 3731541912.

The previous prime is 7877699659. The next prime is 7877699677. The reversal of 7877699668 is 8669967787.

It is an interprime number because it is at equal distance from previous prime (7877699659) and next prime (7877699677).

It is a super-3 number, since 3×7877699668³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7877699668.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51826896 + ... + 51827047.

Almost surely, 2^7877699668 is an apocalyptic number.

It is an amenable number.

7877699668 is a deficient number, since it is larger than the sum of its proper divisors (6633852492).

7877699668 is a wasteful number, since it uses less digits than its factorization.

7877699668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103653966 (or 103653964 counting only the distinct ones).

The product of its digits is 384072192, while the sum is 73.

The square root of 7877699668 is about 88756.4063490631. The cubic root of 7877699668 is about 1989.7559247128.

The spelling of 7877699668 in words is "seven billion, eight hundred seventy-seven million, six hundred ninety-nine thousand, six hundred sixty-eight".