2738768686 has 4 divisors (see below), whose sum is σ = 4108153032. Its totient is φ = 1369384342.

The previous prime is 2738768653. The next prime is 2738768689. The reversal of 2738768686 is 6868678372.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2738768689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 684692170 + ... + 684692173.

It is an arithmetic number, because the mean of its divisors is an integer number (1027038258).

Almost surely, 2^2738768686 is an apocalyptic number.

2738768686 is a deficient number, since it is larger than the sum of its proper divisors (1369384346).

2738768686 is a wasteful number, since it uses less digits than its factorization.

2738768686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369384345.

The product of its digits is 32514048, while the sum is 61.

The square root of 2738768686 is about 52333.2464691423. The cubic root of 2738768686 is about 1399.1097547707.

The spelling of 2738768686 in words is "two billion, seven hundred thirty-eight million, seven hundred sixty-eight thousand, six hundred eighty-six".