2689629777745 has 32 divisors (see below), whose sum is σ = 3526708331520. Its totient is φ = 1963735038720.

The previous prime is 2689629777743. The next prime is 2689629777761. The reversal of 2689629777745 is 5477779269862.

It is not a de Polignac number, because 2689629777745 - 2¹ = 2689629777743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2689629777743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6764394 + ... + 7150963.

It is an arithmetic number, because the mean of its divisors is an integer number (110209635360).

Almost surely, 2^{2689629777745} is an apocalyptic number.

It is an amenable number.

2689629777745 is a deficient number, since it is larger than the sum of its proper divisors (837078553775).

2689629777745 is a wasteful number, since it uses less digits than its factorization.

2689629777745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13915465.

The product of its digits is 4480842240, while the sum is 79.

The spelling of 2689629777745 in words is "two trillion, six hundred eighty-nine billion, six hundred twenty-nine million, seven hundred seventy-seven thousand, seven hundred forty-five".