2768644701 has 12 divisors (see below), whose sum is σ = 4234398012. Its totient is φ = 1737188736.

The previous prime is 2768644643. The next prime is 2768644721. The reversal of 2768644701 is 1074468672.

It can be written as a sum of positive squares in 2 ways, for example, as 1602080676 + 1166564025 = 40026^2 + 34155^2 .

It is not a de Polignac number, because 2768644701 - 2²⁵ = 2735090269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2768644721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9047706 + ... + 9048011.

It is an arithmetic number, because the mean of its divisors is an integer number (352866501).

Almost surely, 2^2768644701 is an apocalyptic number.

It is an amenable number.

2768644701 is a deficient number, since it is larger than the sum of its proper divisors (1465753311).

2768644701 is a wasteful number, since it uses less digits than its factorization.

2768644701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18095740 (or 18095737 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The square root of 2768644701 is about 52617.9123588156. The cubic root of 2768644701 is about 1404.1787902076.

The spelling of 2768644701 in words is "two billion, seven hundred sixty-eight million, six hundred forty-four thousand, seven hundred one".