2164758549 has 8 divisors (see below), whose sum is σ = 2956743552. Its totient is φ = 1407972960.

The previous prime is 2164758539. The next prime is 2164758649. The reversal of 2164758549 is 9458574612.

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

It is not a de Polignac number, because 2164758549 - 2¹¹ = 2164756501 is a prime.

It is a super-3 number, since 3×2164758549³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2164758539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8799709 + ... + 8799954.

It is an arithmetic number, because the mean of its divisors is an integer number (369592944).

Almost surely, 2^2164758549 is an apocalyptic number.

It is an amenable number.

2164758549 is a deficient number, since it is larger than the sum of its proper divisors (791985003).

2164758549 is a wasteful number, since it uses less digits than its factorization.

2164758549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17599707.

The product of its digits is 2419200, while the sum is 51.

The square root of 2164758549 is about 46526.9658262819. The cubic root of 2164758549 is about 1293.6093754782.

The spelling of 2164758549 in words is "two billion, one hundred sixty-four million, seven hundred fifty-eight thousand, five hundred forty-nine".