2097802564 has 48 divisors (see below), whose sum is σ = 4338988416. Its totient is φ = 874886400.

The previous prime is 2097802543. The next prime is 2097802571. The reversal of 2097802564 is 4652087902.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2097802564.

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, 84544 + ... + 106504.

It is an arithmetic number, because the mean of its divisors is an integer number (90395592).

Almost surely, 2^2097802564 is an apocalyptic number.

It is an amenable number.

2097802564 is an abundant number, since it is smaller than the sum of its proper divisors (2241185852).

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

2097802564 is a wasteful number, since it uses less digits than its factorization.

2097802564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22156 (or 22154 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 2097802564 is about 45801.7746817741. The cubic root of 2097802564 is about 1280.1323439006.

The spelling of 2097802564 in words is "two billion, ninety-seven million, eight hundred two thousand, five hundred sixty-four".