6698878058 has 4 divisors (see below), whose sum is σ = 10048317090. Its totient is φ = 3349439028.

The previous prime is 6698878019. The next prime is 6698878061. The reversal of 6698878058 is 8508788966.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5109819289 + 1589058769 = 71483^2 + 39863^2 .

It is a super-3 number, since 3×6698878058³ (a number of 30 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6698877985 and 6698878003.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1674719513 + ... + 1674719516.

Almost surely, 2^6698878058 is an apocalyptic number.

6698878058 is a deficient number, since it is larger than the sum of its proper divisors (3349439032).

6698878058 is a wasteful number, since it uses less digits than its factorization.

6698878058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3349439031.

The product of its (nonzero) digits is 46448640, while the sum is 65.

The square root of 6698878058 is about 81846.6740802581. The cubic root of 6698878058 is about 1885.0983968318.

The spelling of 6698878058 in words is "six billion, six hundred ninety-eight million, eight hundred seventy-eight thousand, fifty-eight".