6978934490 has 16 divisors (see below), whose sum is σ = 13704089760. Its totient is φ = 2537794320.

The previous prime is 6978934447. The next prime is 6978934531. The reversal of 6978934490 is 944398796.

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, 31722320 + ... + 31722539.

It is an arithmetic number, because the mean of its divisors is an integer number (856505610).

Almost surely, 2^6978934490 is an apocalyptic number.

6978934490 is a deficient number, since it is larger than the sum of its proper divisors (6725155270).

6978934490 is a wasteful number, since it uses less digits than its factorization.

6978934490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63444877.

The product of its (nonzero) digits is 11757312, while the sum is 59.

The square root of 6978934490 is about 83540.0172971014. The cubic root of 6978934490 is about 1911.0103560460.

The spelling of 6978934490 in words is "six billion, nine hundred seventy-eight million, nine hundred thirty-four thousand, four hundred ninety".