2774733261 has 16 divisors (see below), whose sum is σ = 3795543360. Its totient is φ = 1802007680.

The previous prime is 2774733257. The next prime is 2774733263. The reversal of 2774733261 is 1623374772.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2774733261 - 2² = 2774733257 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2774733263) 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, 67495 + ... + 100523.

It is an arithmetic number, because the mean of its divisors is an integer number (237221460).

Almost surely, 2^2774733261 is an apocalyptic number.

It is an amenable number.

2774733261 is a deficient number, since it is larger than the sum of its proper divisors (1020810099).

2774733261 is a wasteful number, since it uses less digits than its factorization.

2774733261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33756.

The product of its digits is 296352, while the sum is 42.

The square root of 2774733261 is about 52675.7369288746. The cubic root of 2774733261 is about 1405.2073521135.

The spelling of 2774733261 in words is "two billion, seven hundred seventy-four million, seven hundred thirty-three thousand, two hundred sixty-one".