2621217080 has 64 divisors (see below), whose sum is σ = 6516210240. Its totient is φ = 943900672.

The previous prime is 2621217061. The next prime is 2621217169. The reversal of 2621217080 is 807121262.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68159 + ... + 99438.

It is an arithmetic number, because the mean of its divisors is an integer number (101815785).

Almost surely, 2^2621217080 is an apocalyptic number.

2621217080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2621217080 is an abundant number, since it is smaller than the sum of its proper divisors (3894993160).

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

2621217080 is a wasteful number, since it uses less digits than its factorization.

2621217080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167648 (or 167644 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 2621217080 is about 51197.8230005925. The cubic root of 2621217080 is about 1378.7991163181.

The spelling of 2621217080 in words is "two billion, six hundred twenty-one million, two hundred seventeen thousand, eighty".