2119908720 has 80 divisors (see below), whose sum is σ = 6576141600. Its totient is φ = 564928512.

The previous prime is 2119908697. The next prime is 2119908737. The reversal of 2119908720 is 278099112.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×2119908720² = 8988025962264076800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 693756 + ... + 696804.

It is an arithmetic number, because the mean of its divisors is an integer number (82201770).

Almost surely, 2^2119908720 is an apocalyptic number.

2119908720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2119908720 is an abundant number, since it is smaller than the sum of its proper divisors (4456232880).

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

2119908720 is a wasteful number, since it uses less digits than its factorization.

2119908720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5962 (or 5956 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 2119908720 is about 46042.4664847573. The cubic root of 2119908720 is about 1284.6132201558.

The spelling of 2119908720 in words is "two billion, one hundred nineteen million, nine hundred eight thousand, seven hundred twenty".