8621430645 has 8 divisors (see below), whose sum is σ = 13794289056. Its totient is φ = 4598096336.

The previous prime is 8621430589. The next prime is 8621430661. The reversal of 8621430645 is 5460341268.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8621430645 - 2⁶ = 8621430581 is a prime.

It is a congruent number.

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, 287381007 + ... + 287381036.

It is an arithmetic number, because the mean of its divisors is an integer number (1724286132).

Almost surely, 2^8621430645 is an apocalyptic number.

It is an amenable number.

8621430645 is a deficient number, since it is larger than the sum of its proper divisors (5172858411).

8621430645 is a wasteful number, since it uses less digits than its factorization.

8621430645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574762051.

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 8621430645 is about 92851.6593551241. The cubic root of 8621430645 is about 2050.5000283324.

The spelling of 8621430645 in words is "eight billion, six hundred twenty-one million, four hundred thirty thousand, six hundred forty-five".