6978004164 has 36 divisors (see below), whose sum is σ = 17658810624. Its totient is φ = 2323368432.

The previous prime is 6978004153. The next prime is 6978004199. The reversal of 6978004164 is 4614008796.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×6978004164² = 97385084225602677792, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77332 + ... + 141195.

Almost surely, 2^6978004164 is an apocalyptic number.

It is an amenable number.

6978004164 is an abundant number, since it is smaller than the sum of its proper divisors (10680806460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6978004164 is a wasteful number, since it uses less digits than its factorization.

6978004164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219424 (or 219419 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 6978004164 is about 83534.4489656812. The cubic root of 6978004164 is about 1910.9254366060.

The spelling of 6978004164 in words is "six billion, nine hundred seventy-eight million, four thousand, one hundred sixty-four".