8358921458 has 4 divisors (see below), whose sum is σ = 12538382190. Its totient is φ = 4179460728.

The previous prime is 8358921457. The next prime is 8358921463. The reversal of 8358921458 is 8541298538.

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., 8338063969 + 20857489 = 91313^2 + 4567^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8358921457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2089730363 + ... + 2089730366.

Almost surely, 2^8358921458 is an apocalyptic number.

8358921458 is a deficient number, since it is larger than the sum of its proper divisors (4179460732).

8358921458 is a wasteful number, since it uses less digits than its factorization.

8358921458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4179460731.

The product of its digits is 2764800, while the sum is 53.

The square root of 8358921458 is about 91427.1374264775. The cubic root of 8358921458 is about 2029.4736401338.

The spelling of 8358921458 in words is "eight billion, three hundred fifty-eight million, nine hundred twenty-one thousand, four hundred fifty-eight".