8422642945 has 32 divisors (see below), whose sum is σ = 10805529600. Its totient is φ = 6280504320.

The previous prime is 8422642847. The next prime is 8422642957. The reversal of 8422642945 is 5492462248.

It is not a de Polignac number, because 8422642945 - 2²⁷ = 8288425217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8422642895 and 8422642904.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5457844 + ... + 5459386.

It is an arithmetic number, because the mean of its divisors is an integer number (337672800).

Almost surely, 2^8422642945 is an apocalyptic number.

8422642945 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8422642945 is a deficient number, since it is larger than the sum of its proper divisors (2382886655).

8422642945 is a wasteful number, since it uses less digits than its factorization.

8422642945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2145.

The product of its digits is 1105920, while the sum is 46.

The square root of 8422642945 is about 91774.9581585304. The cubic root of 8422642945 is about 2034.6175992466.

The spelling of 8422642945 in words is "eight billion, four hundred twenty-two million, six hundred forty-two thousand, nine hundred forty-five".