6485617702645 has 16 divisors (see below), whose sum is σ = 8269875381168. Its totient is φ = 4865910353920.

The previous prime is 6485617702601. The next prime is 6485617702693. The reversal of 6485617702645 is 5462077165846.

It can be written as a sum of positive squares in 8 ways, for example, as 288252484 + 6485329450161 = 16978^2 + 2546631^2 .

It is not a de Polignac number, because 6485617702645 - 2¹⁹ = 6485617178357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135743704 + ... + 135791473.

It is an arithmetic number, because the mean of its divisors is an integer number (516867211323).

Almost surely, 2^{6485617702645} is an apocalyptic number.

It is an amenable number.

6485617702645 is a deficient number, since it is larger than the sum of its proper divisors (1784257678523).

6485617702645 is a wasteful number, since it uses less digits than its factorization.

6485617702645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271535480.

The product of its (nonzero) digits is 67737600, while the sum is 61.

The spelling of 6485617702645 in words is "six trillion, four hundred eighty-five billion, six hundred seventeen million, seven hundred two thousand, six hundred forty-five".