8615628813643 has 2 divisors, whose sum is σ = 8615628813644. Its totient is φ = 8615628813642.

The previous prime is 8615628813641. The next prime is 8615628813679. The reversal of 8615628813643 is 3463188265168.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8615628813643 - 2¹ = 8615628813641 is a prime.

Together with 8615628813641, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (8615628813641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4307814406821 + 4307814406822.

It is an arithmetic number, because the mean of its divisors is an integer number (4307814406822).

Almost surely, 2^{8615628813643} is an apocalyptic number.

8615628813643 is a deficient number, since it is larger than the sum of its proper divisors (1).

8615628813643 is an equidigital number, since it uses as much as digits as its factorization.

8615628813643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39813120, while the sum is 61.

The spelling of 8615628813643 in words is "eight trillion, six hundred fifteen billion, six hundred twenty-eight million, eight hundred thirteen thousand, six hundred forty-three".