2738772865 has 4 divisors (see below), whose sum is σ = 3286527444. Its totient is φ = 2191018288.

The previous prime is 2738772859. The next prime is 2738772887. The reversal of 2738772865 is 5682778372.

2738772865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 623600784 + 2115172081 = 24972^2 + 45991^2 .

It is a cyclic number.

It is not a de Polignac number, because 2738772865 - 2³ = 2738772857 is a prime.

It is a Duffinian 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, 273877282 + ... + 273877291.

It is an arithmetic number, because the mean of its divisors is an integer number (821631861).

Almost surely, 2^2738772865 is an apocalyptic number.

It is an amenable number.

2738772865 is a deficient number, since it is larger than the sum of its proper divisors (547754579).

2738772865 is an equidigital number, since it uses as much as digits as its factorization.

2738772865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547754578.

The product of its digits is 7902720, while the sum is 55.

The square root of 2738772865 is about 52333.2863959450. The cubic root of 2738772865 is about 1399.1104663894.

The spelling of 2738772865 in words is "two billion, seven hundred thirty-eight million, seven hundred seventy-two thousand, eight hundred sixty-five".