2623557680 has 20 divisors (see below), whose sum is σ = 6099771792. Its totient is φ = 1049423040.

The previous prime is 2623557649. The next prime is 2623557697. The reversal of 2623557680 is 867553262.

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

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, 16397156 + ... + 16397315.

Almost surely, 2^2623557680 is an apocalyptic number.

2623557680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2623557680 is an abundant number, since it is smaller than the sum of its proper divisors (3476214112).

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

2623557680 is a wasteful number, since it uses less digits than its factorization.

2623557680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32794484 (or 32794478 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 44.

The square root of 2623557680 is about 51220.6762938562. The cubic root of 2623557680 is about 1379.2093910129.

The spelling of 2623557680 in words is "two billion, six hundred twenty-three million, five hundred fifty-seven thousand, six hundred eighty".