2774387849 has 4 divisors (see below), whose sum is σ = 2812393236. Its totient is φ = 2736382464.

The previous prime is 2774387843. The next prime is 2774387851. The reversal of 2774387849 is 9487834772.

2774387849 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 2209470025 + 564917824 = 47005^2 + 23768^2 .

It is a cyclic number.

It is not a de Polignac number, because 2774387849 - 2¹² = 2774383753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2774387843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19002584 + ... + 19002729.

It is an arithmetic number, because the mean of its divisors is an integer number (703098309).

Almost surely, 2^2774387849 is an apocalyptic number.

It is an amenable number.

2774387849 is a deficient number, since it is larger than the sum of its proper divisors (38005387).

2774387849 is an equidigital number, since it uses as much as digits as its factorization.

2774387849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38005386.

The product of its digits is 18966528, while the sum is 59.

The square root of 2774387849 is about 52672.4581636361. The cubic root of 2774387849 is about 1405.1490407278.

The spelling of 2774387849 in words is "two billion, seven hundred seventy-four million, three hundred eighty-seven thousand, eight hundred forty-nine".