2768973649 has 8 divisors (see below), whose sum is σ = 2983576680. Its totient is φ = 2554599936.

The previous prime is 2768973629. The next prime is 2768973653. The reversal of 2768973649 is 9463798672.

It can be written as a sum of positive squares in 4 ways, for example, as 130302225 + 2638671424 = 11415^2 + 51368^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2768973649 - 2¹⁷ = 2768842577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2768973619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31822 + ... + 80935.

It is an arithmetic number, because the mean of its divisors is an integer number (372947085).

Almost surely, 2^2768973649 is an apocalyptic number.

It is an amenable number.

2768973649 is a deficient number, since it is larger than the sum of its proper divisors (214603031).

2768973649 is a wasteful number, since it uses less digits than its factorization.

2768973649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114659.

The product of its digits is 27433728, while the sum is 61.

The square root of 2768973649 is about 52621.0380836410. The cubic root of 2768973649 is about 1404.2343990659.

The spelling of 2768973649 in words is "two billion, seven hundred sixty-eight million, nine hundred seventy-three thousand, six hundred forty-nine".