2645641570 has 64 divisors (see below), whose sum is σ = 5618833920. Its totient is φ = 884217600.

The previous prime is 2645641543. The next prime is 2645641573. The reversal of 2645641570 is 751465462.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2645641573) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 337900 + ... + 345640.

It is an arithmetic number, because the mean of its divisors is an integer number (87794280).

Almost surely, 2^2645641570 is an apocalyptic number.

2645641570 is an abundant number, since it is smaller than the sum of its proper divisors (2973192350).

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

2645641570 is a wasteful number, since it uses less digits than its factorization.

2645641570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8011.

The product of its (nonzero) digits is 201600, while the sum is 40.

The square root of 2645641570 is about 51435.8004701006. The cubic root of 2645641570 is about 1383.0684313325.

The spelling of 2645641570 in words is "two billion, six hundred forty-five million, six hundred forty-one thousand, five hundred seventy".