2745849939 has 16 divisors (see below), whose sum is σ = 4185510912. Its totient is φ = 1568547648.

The previous prime is 2745849929. The next prime is 2745849973. The reversal of 2745849939 is 9399485472.

It is not a de Polignac number, because 2745849939 - 2¹⁹ = 2745325651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2745849929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50647 + ... + 89759.

It is an arithmetic number, because the mean of its divisors is an integer number (261594432).

Almost surely, 2^2745849939 is an apocalyptic number.

2745849939 is a deficient number, since it is larger than the sum of its proper divisors (1439660973).

2745849939 is a wasteful number, since it uses less digits than its factorization.

2745849939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42466.

The product of its digits is 19595520, while the sum is 60.

The square root of 2745849939 is about 52400.8581895373. The cubic root of 2745849939 is about 1400.3145448006.

The spelling of 2745849939 in words is "two billion, seven hundred forty-five million, eight hundred forty-nine thousand, nine hundred thirty-nine".