7879402706 has 16 divisors (see below), whose sum is σ = 13509959424. Its totient is φ = 3376283904.

The previous prime is 7879402667. The next prime is 7879402759. The reversal of 7879402706 is 6072049787.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36071 + ... + 130613.

It is an arithmetic number, because the mean of its divisors is an integer number (844372464).

Almost surely, 2^7879402706 is an apocalyptic number.

7879402706 is a deficient number, since it is larger than the sum of its proper divisors (5630556718).

7879402706 is a wasteful number, since it uses less digits than its factorization.

7879402706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100505.

The product of its (nonzero) digits is 1185408, while the sum is 50.

The square root of 7879402706 is about 88765.9997183606. Note that the first 3 decimals coincide. The cubic root of 7879402706 is about 1989.8992992990.

Adding to 7879402706 its sum of digits (50), we get a square (7879402756 = 88766²).

The spelling of 7879402706 in words is "seven billion, eight hundred seventy-nine million, four hundred two thousand, seven hundred six".