2645261270 has 32 divisors (see below), whose sum is σ = 4855878720. Its totient is φ = 1037162880.

The previous prime is 2645261261. The next prime is 2645261273. The reversal of 2645261270 is 721625462.

It is a self number, because there is not a number n which added to its sum of digits gives 2645261270.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2645261273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 857591 + ... + 860669.

It is an arithmetic number, because the mean of its divisors is an integer number (151746210).

Almost surely, 2^2645261270 is an apocalyptic number.

2645261270 is a deficient number, since it is larger than the sum of its proper divisors (2210617450).

2645261270 is a wasteful number, since it uses less digits than its factorization.

2645261270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4760.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 2645261270 is about 51432.1034957739. The cubic root of 2645261270 is about 1383.0021580404.

The spelling of 2645261270 in words is "two billion, six hundred forty-five million, two hundred sixty-one thousand, two hundred seventy".