2621678363 has 2 divisors, whose sum is σ = 2621678364. Its totient is φ = 2621678362.

The previous prime is 2621678321. The next prime is 2621678431. The reversal of 2621678363 is 3638761262.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2621678363 - 2¹⁰ = 2621677339 is a prime.

It is not a weakly prime, because it can be changed into another prime (2621678263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1310839181 + 1310839182.

It is an arithmetic number, because the mean of its divisors is an integer number (1310839182).

Almost surely, 2^2621678363 is an apocalyptic number.

2621678363 is a deficient number, since it is larger than the sum of its proper divisors (1).

2621678363 is an equidigital number, since it uses as much as digits as its factorization.

2621678363 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 44.

The square root of 2621678363 is about 51202.3277107594. The cubic root of 2621678363 is about 1378.8799921438.

The spelling of 2621678363 in words is "two billion, six hundred twenty-one million, six hundred seventy-eight thousand, three hundred sixty-three".