2658243680 has 24 divisors (see below), whose sum is σ = 6280101072. Its totient is φ = 1063297408.

The previous prime is 2658243671. The next prime is 2658243691. The reversal of 2658243680 is 863428562.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8306852 + ... + 8307171.

It is an arithmetic number, because the mean of its divisors is an integer number (261670878).

Almost surely, 2^2658243680 is an apocalyptic number.

2658243680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2658243680 is an abundant number, since it is smaller than the sum of its proper divisors (3621857392).

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

2658243680 is a wasteful number, since it uses less digits than its factorization.

2658243680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16614038 (or 16614030 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 44.

The square root of 2658243680 is about 51558.1582293239. The cubic root of 2658243680 is about 1385.2609655652.

The spelling of 2658243680 in words is "two billion, six hundred fifty-eight million, two hundred forty-three thousand, six hundred eighty".