2690669111138 has 8 divisors (see below), whose sum is σ = 4051007398620. Its totient is φ = 1340333311600.

The previous prime is 2690669111111. The next prime is 2690669111177. The reversal of 2690669111138 is 8311119660962.

It can be written as a sum of positive squares in 2 ways, for example, as 2439103668169 + 251565442969 = 1561763^2 + 501563^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 2690669111138.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2500621313 + ... + 2500622388.

Almost surely, 2^{2690669111138} is an apocalyptic number.

2690669111138 is a deficient number, since it is larger than the sum of its proper divisors (1360338287482).

2690669111138 is a wasteful number, since it uses less digits than its factorization.

2690669111138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5001243972.

The product of its (nonzero) digits is 839808, while the sum is 53.

The spelling of 2690669111138 in words is "two trillion, six hundred ninety billion, six hundred sixty-nine million, one hundred eleven thousand, one hundred thirty-eight".