2279011680 has 384 divisors, whose sum is σ = 8781696000. Its totient is φ = 547430400.

The previous prime is 2279011643. The next prime is 2279011733. The reversal of 2279011680 is 861109722.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9456360 + ... + 9456600.

It is an arithmetic number, because the mean of its divisors is an integer number (22869000).

Almost surely, 2^2279011680 is an apocalyptic number.

2279011680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2279011680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4390848000).

2279011680 is an abundant number, since it is smaller than the sum of its proper divisors (6502684320).

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

2279011680 is a wasteful number, since it uses less digits than its factorization.

2279011680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 2279011680 is about 47738.9953811347. The cubic root of 2279011680 is about 1315.9786707062.

The spelling of 2279011680 in words is "two billion, two hundred seventy-nine million, eleven thousand, six hundred eighty".