2659780368 has 120 divisors (see below), whose sum is σ = 8881083360. Its totient is φ = 759931200.

The previous prime is 2659780367. The next prime is 2659780393. The reversal of 2659780368 is 8630879562.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (2659780367) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41658 + ... + 83993.

It is an arithmetic number, because the mean of its divisors is an integer number (74009028).

Almost surely, 2^2659780368 is an apocalyptic number.

2659780368 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2659780368 is an abundant number, since it is smaller than the sum of its proper divisors (6221302992).

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

2659780368 is a wasteful number, since it uses less digits than its factorization.

2659780368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125682 (or 125663 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The square root of 2659780368 is about 51573.0585480442. The cubic root of 2659780368 is about 1385.5278465211.

The spelling of 2659780368 in words is "two billion, six hundred fifty-nine million, seven hundred eighty thousand, three hundred sixty-eight".