8615628813645 has 96 divisors (see below), whose sum is σ = 17811154483200. Its totient is φ = 3766917508992.

The previous prime is 8615628813643. The next prime is 8615628813679. The reversal of 8615628813645 is 5463188265168.

8615628813645 is a `hidden beast` number, since 8 + 6 + 1 + 562 + 8 + 8 + 1 + 3 + 64 + 5 = 666.

It is not a de Polignac number, because 8615628813645 - 2¹ = 8615628813643 is a prime.

It is a super-3 number, since 3×8615628813645³ (a number of 40 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8615628813641) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 71368146 + ... + 71488764.

It is an arithmetic number, because the mean of its divisors is an integer number (185532859200).

Almost surely, 2^{8615628813645} is an apocalyptic number.

It is an amenable number.

8615628813645 is an abundant number, since it is smaller than the sum of its proper divisors (9195525669555).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8615628813645 is a wasteful number, since it uses less digits than its factorization.

8615628813645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130519 (or 130516 counting only the distinct ones).

The product of its digits is 66355200, while the sum is 63.

The spelling of 8615628813645 in words is "eight trillion, six hundred fifteen billion, six hundred twenty-eight million, eight hundred thirteen thousand, six hundred forty-five".