8499540749 has 8 divisors (see below), whose sum is σ = 9749607168. Its totient is φ = 7258435920.

The previous prime is 8499540697. The next prime is 8499540757. The reversal of 8499540749 is 9470459948.

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 8499540749 - 2⁸ = 8499540493 is a prime.

It is a super-2 number, since 2×8499540749² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8499543749) by changing a digit.

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, 2238362 + ... + 2242155.

It is an arithmetic number, because the mean of its divisors is an integer number (1218700896).

Almost surely, 2^8499540749 is an apocalyptic number.

It is an amenable number.

8499540749 is a deficient number, since it is larger than the sum of its proper divisors (1250066419).

8499540749 is a wasteful number, since it uses less digits than its factorization.

8499540749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4480795.

The product of its (nonzero) digits is 13063680, while the sum is 59.

The square root of 8499540749 is about 92192.9539010439. The cubic root of 8499540749 is about 2040.7907953126.

The spelling of 8499540749 in words is "eight billion, four hundred ninety-nine million, five hundred forty thousand, seven hundred forty-nine".