2645185064 has 16 divisors (see below), whose sum is σ = 4960821120. Its totient is φ = 1322299440.

The previous prime is 2645185061. The next prime is 2645185079. The reversal of 2645185064 is 4605815462.

It is not an unprimeable number, because it can be changed into a prime (2645185061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4427 + ... + 72869.

It is an arithmetic number, because the mean of its divisors is an integer number (310051320).

Almost surely, 2^2645185064 is an apocalyptic number.

It is an amenable number.

2645185064 is a deficient number, since it is larger than the sum of its proper divisors (2315636056).

2645185064 is a wasteful number, since it uses less digits than its factorization.

2645185064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73280 (or 73276 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 41.

The square root of 2645185064 is about 51431.3626496518. The cubic root of 2645185064 is about 1382.9888771753.

The spelling of 2645185064 in words is "two billion, six hundred forty-five million, one hundred eighty-five thousand, sixty-four".