2719920812 has 72 divisors (see below), whose sum is σ = 5737268880. Its totient is φ = 1124175360.

The previous prime is 2719920803. The next prime is 2719920829. The reversal of 2719920812 is 2180299172.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a self number, because there is not a number n which added to its sum of digits gives 2719920812.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 713303 + ... + 717105.

It is an arithmetic number, because the mean of its divisors is an integer number (79684290).

Almost surely, 2^2719920812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2719920812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2868634440).

2719920812 is an abundant number, since it is smaller than the sum of its proper divisors (3017348068).

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

2719920812 is a wasteful number, since it uses less digits than its factorization.

2719920812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3951 (or 3942 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 2719920812 is about 52152.8600558014. The cubic root of 2719920812 is about 1395.8928627997.

The spelling of 2719920812 in words is "two billion, seven hundred nineteen million, nine hundred twenty thousand, eight hundred twelve".