8041193658 has 24 divisors (see below), whose sum is σ = 17533564308. Its totient is φ = 2663324352.

The previous prime is 8041193651. The next prime is 8041193663. The reversal of 8041193658 is 8563911408.

It can be written as a sum of positive squares in 2 ways, for example, as 7725882609 + 315311049 = 87897^2 + 17757^2 .

It is not an unprimeable number, because it can be changed into a prime (8041193651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1419891 + ... + 1425542.

Almost surely, 2^8041193658 is an apocalyptic number.

8041193658 is an abundant number, since it is smaller than the sum of its proper divisors (9492370650).

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

8041193658 is a wasteful number, since it uses less digits than its factorization.

8041193658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2845598 (or 2845595 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 8041193658 is about 89672.7029703019. The cubic root of 8041193658 is about 2003.4269295565.

The spelling of 8041193658 in words is "eight billion, forty-one million, one hundred ninety-three thousand, six hundred fifty-eight".