2740657645 has 8 divisors (see below), whose sum is σ = 3587770080. Its totient is φ = 1993205520.

The previous prime is 2740657643. The next prime is 2740657649. The reversal of 2740657645 is 5467560472.

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

It is not a de Polignac number, because 2740657645 - 2¹ = 2740657643 is a prime.

It is a super-3 number, since 3×2740657645³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 2740657595 and 2740657604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2740657643) 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, 24915015 + ... + 24915124.

It is an arithmetic number, because the mean of its divisors is an integer number (448471260).

Almost surely, 2^2740657645 is an apocalyptic number.

It is an amenable number.

2740657645 is a deficient number, since it is larger than the sum of its proper divisors (847112435).

2740657645 is a wasteful number, since it uses less digits than its factorization.

2740657645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49830155.

The product of its (nonzero) digits is 1411200, while the sum is 46.

The square root of 2740657645 is about 52351.2907672772. The cubic root of 2740657645 is about 1399.4313413297.

The spelling of 2740657645 in words is "two billion, seven hundred forty million, six hundred fifty-seven thousand, six hundred forty-five".