7042378664 has 16 divisors (see below), whose sum is σ = 13511541120. Its totient is φ = 3439301040.

The previous prime is 7042378663. The next prime is 7042378669. The reversal of 7042378664 is 4668732407.

It is not an unprimeable number, because it can be changed into a prime (7042378663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10235672 + ... + 10236359.

It is an arithmetic number, because the mean of its divisors is an integer number (844471320).

Almost surely, 2^7042378664 is an apocalyptic number.

It is an amenable number.

7042378664 is a deficient number, since it is larger than the sum of its proper divisors (6469162456).

7042378664 is a wasteful number, since it uses less digits than its factorization.

7042378664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20472080 (or 20472076 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 47.

The square root of 7042378664 is about 83918.8814510775. The cubic root of 7042378664 is about 1916.7837741612.

The spelling of 7042378664 in words is "seven billion, forty-two million, three hundred seventy-eight thousand, six hundred sixty-four".