8541449642 has 16 divisors (see below), whose sum is σ = 14077476000. Its totient is φ = 3854544240.

The previous prime is 8541449633. The next prime is 8541449687. The reversal of 8541449642 is 2469441458.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1393517 + ... + 1399632.

It is an arithmetic number, because the mean of its divisors is an integer number (879842250).

Almost surely, 2^8541449642 is an apocalyptic number.

8541449642 is a deficient number, since it is larger than the sum of its proper divisors (5536026358).

8541449642 is a wasteful number, since it uses less digits than its factorization.

8541449642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2793301.

The product of its digits is 1105920, while the sum is 47.

The square root of 8541449642 is about 92419.9634386424. The cubic root of 8541449642 is about 2044.1394898250.

The spelling of 8541449642 in words is "eight billion, five hundred forty-one million, four hundred forty-nine thousand, six hundred forty-two".