6705249658 has 4 divisors (see below), whose sum is σ = 10057874490. Its totient is φ = 3352624828.

The previous prime is 6705249613. The next prime is 6705249659. The reversal of 6705249658 is 8569425076.

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., 6689113369 + 16136289 = 81787^2 + 4017^2 .

It is a super-2 number, since 2×6705249658² = 89920745952218233928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6705249659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1676312413 + ... + 1676312416.

Almost surely, 2^6705249658 is an apocalyptic number.

6705249658 is a deficient number, since it is larger than the sum of its proper divisors (3352624832).

6705249658 is a wasteful number, since it uses less digits than its factorization.

6705249658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3352624831.

The product of its (nonzero) digits is 3628800, while the sum is 52.

The square root of 6705249658 is about 81885.5888297813. The cubic root of 6705249658 is about 1885.6958743376.

The spelling of 6705249658 in words is "six billion, seven hundred five million, two hundred forty-nine thousand, six hundred fifty-eight".