2653645982 has 16 divisors (see below), whose sum is σ = 4512273360. Its totient is φ = 1160298432.

The previous prime is 2653645979. The next prime is 2653645987. The reversal of 2653645982 is 2895463562.

It is a self number, because there is not a number n which added to its sum of digits gives 2653645982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2653645987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2685383 + ... + 2686370.

It is an arithmetic number, because the mean of its divisors is an integer number (282017085).

Almost surely, 2^2653645982 is an apocalyptic number.

2653645982 is a deficient number, since it is larger than the sum of its proper divisors (1858627378).

2653645982 is a wasteful number, since it uses less digits than its factorization.

2653645982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5371787.

The product of its digits is 3110400, while the sum is 50.

The square root of 2653645982 is about 51513.5514403734. The cubic root of 2653645982 is about 1384.4618555992.

The spelling of 2653645982 in words is "two billion, six hundred fifty-three million, six hundred forty-five thousand, nine hundred eighty-two".