6542679004 has 6 divisors (see below), whose sum is σ = 11449688264. Its totient is φ = 3271339500.

The previous prime is 6542678999. The next prime is 6542679019. The reversal of 6542679004 is 4009762456.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 817834872 + ... + 817834879.

Almost surely, 2^6542679004 is an apocalyptic number.

It is an amenable number.

6542679004 is a deficient number, since it is larger than the sum of its proper divisors (4907009260).

6542679004 is a wasteful number, since it uses less digits than its factorization.

6542679004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1635669755 (or 1635669753 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 43.

The square root of 6542679004 is about 80886.8283714969. The cubic root of 6542679004 is about 1870.3312827815.

The spelling of 6542679004 in words is "six billion, five hundred forty-two million, six hundred seventy-nine thousand, four".