8644192045 has 16 divisors (see below), whose sum is σ = 11000683008. Its totient is φ = 6498213120.

The previous prime is 8644192031. The next prime is 8644192091. The reversal of 8644192045 is 5402914468.

It is not a de Polignac number, because 8644192045 - 2⁹ = 8644191533 is a prime.

It is a super-2 number, since 2×8644192045² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8644191992 and 8644192010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26949 + ... + 134218.

It is an arithmetic number, because the mean of its divisors is an integer number (687542688).

Almost surely, 2^8644192045 is an apocalyptic number.

8644192045 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8644192045 is a deficient number, since it is larger than the sum of its proper divisors (2356490963).

8644192045 is a wasteful number, since it uses less digits than its factorization.

8644192045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161820.

The product of its (nonzero) digits is 276480, while the sum is 43.

The square root of 8644192045 is about 92974.1471861936. The cubic root of 8644192045 is about 2052.3029479148.

The spelling of 8644192045 in words is "eight billion, six hundred forty-four million, one hundred ninety-two thousand, forty-five".