5645468545 has 8 divisors (see below), whose sum is σ = 7173066024. Its totient is φ = 4250705664.

The previous prime is 5645468539. The next prime is 5645468551. The reversal of 5645468545 is 5458645465.

It is an interprime number because it is at equal distance from previous prime (5645468539) and next prime (5645468551).

It can be written as a sum of positive squares in 4 ways, for example, as 158659216 + 5486809329 = 12596^2 + 74073^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 5645468545 - 2⁷ = 5645468417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5645468492 and 5645468501.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33208554 + ... + 33208723.

It is an arithmetic number, because the mean of its divisors is an integer number (896633253).

Almost surely, 2^5645468545 is an apocalyptic number.

It is an amenable number.

5645468545 is a deficient number, since it is larger than the sum of its proper divisors (1527597479).

5645468545 is a wasteful number, since it uses less digits than its factorization.

5645468545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66417299.

The product of its digits is 11520000, while the sum is 52.

The square root of 5645468545 is about 75136.3330553202. Note that the first 3 decimals coincide. The cubic root of 5645468545 is about 1780.6012092987.

The spelling of 5645468545 in words is "five billion, six hundred forty-five million, four hundred sixty-eight thousand, five hundred forty-five".