2623626660 has 48 divisors (see below), whose sum is σ = 7778284416. Its totient is φ = 658478592.

The previous prime is 2623626637. The next prime is 2623626667. The reversal of 2623626660 is 666263262.

It is not an unprimeable number, because it can be changed into a prime (2623626667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1285072 + ... + 1287111.

It is an arithmetic number, because the mean of its divisors is an integer number (162047592).

Almost surely, 2^2623626660 is an apocalyptic number.

2623626660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2623626660 is an abundant number, since it is smaller than the sum of its proper divisors (5154657756).

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

2623626660 is a wasteful number, since it uses less digits than its factorization.

2623626660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2572212 (or 2572210 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 39.

The square root of 2623626660 is about 51221.3496503167. The cubic root of 2623626660 is about 1379.2214785472.

The spelling of 2623626660 in words is "two billion, six hundred twenty-three million, six hundred twenty-six thousand, six hundred sixty".