2686816031 has 2 divisors, whose sum is σ = 2686816032. Its totient is φ = 2686816030.

The previous prime is 2686816019. The next prime is 2686816057. The reversal of 2686816031 is 1306186862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2686816031 - 2¹⁰ = 2686815007 is a prime.

It is a super-2 number, since 2×2686816031² = 14437960768877185922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2686816031.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2686816061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1343408015 + 1343408016.

It is an arithmetic number, because the mean of its divisors is an integer number (1343408016).

Almost surely, 2^2686816031 is an apocalyptic number.

2686816031 is a deficient number, since it is larger than the sum of its proper divisors (1).

2686816031 is an equidigital number, since it uses as much as digits as its factorization.

2686816031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 2686816031 is about 51834.5061807287. The cubic root of 2686816031 is about 1390.2064857232.

The spelling of 2686816031 in words is "two billion, six hundred eighty-six million, eight hundred sixteen thousand, thirty-one".