8449981742 has 8 divisors (see below), whose sum is σ = 12745000632. Its totient is φ = 4201648200.

The previous prime is 8449981723. The next prime is 8449981759. The reversal of 8449981742 is 2471899448.

It is a happy number.

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

It is a super-3 number, since 3×8449981742³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11670884 + ... + 11671607.

It is an arithmetic number, because the mean of its divisors is an integer number (1593125079).

Almost surely, 2^8449981742 is an apocalyptic number.

8449981742 is a deficient number, since it is larger than the sum of its proper divisors (4295018890).

8449981742 is a wasteful number, since it uses less digits than its factorization.

8449981742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23342674.

The product of its digits is 4644864, while the sum is 56.

The square root of 8449981742 is about 91923.7822437698. The cubic root of 8449981742 is about 2036.8165892561.

The spelling of 8449981742 in words is "eight billion, four hundred forty-nine million, nine hundred eighty-one thousand, seven hundred forty-two".