7879867876 has 6 divisors (see below), whose sum is σ = 13789768790. Its totient is φ = 3939933936.

The previous prime is 7879867843. The next prime is 7879867901. The reversal of 7879867876 is 6787689787.

It can be written as a sum of positive squares in only one way, i.e., 7001338276 + 878529600 = 83674^2 + 29640^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7879867799 and 7879867808.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 984983481 + ... + 984983488.

Almost surely, 2^7879867876 is an apocalyptic number.

It is an amenable number.

7879867876 is a deficient number, since it is larger than the sum of its proper divisors (5909900914).

7879867876 is a wasteful number, since it uses less digits than its factorization.

7879867876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1969966973 (or 1969966971 counting only the distinct ones).

The product of its digits is 398297088, while the sum is 73.

The square root of 7879867876 is about 88768.6198833800. The cubic root of 7879867876 is about 1989.9384572266.

The spelling of 7879867876 in words is "seven billion, eight hundred seventy-nine million, eight hundred sixty-seven thousand, eight hundred seventy-six".