1775280012 has 96 divisors (see below), whose sum is σ = 4816143360. Its totient is φ = 502993920.

The previous prime is 1775279999. The next prime is 1775280049. The reversal of 1775280012 is 2100825771.

1775280012 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 349789 + ... + 354827.

It is an arithmetic number, because the mean of its divisors is an integer number (50168160).

Almost surely, 2^1775280012 is an apocalyptic number.

1775280012 is a gapful number since it is divisible by the number (12) 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 1775280012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2408071680).

1775280012 is an abundant number, since it is smaller than the sum of its proper divisors (3040863348).

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

1775280012 is a wasteful number, since it uses less digits than its factorization.

1775280012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5231 (or 5229 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 33.

The square root of 1775280012 is about 42134.0718658902. The cubic root of 1775280012 is about 1210.8461199391.

The spelling of 1775280012 in words is "one billion, seven hundred seventy-five million, two hundred eighty thousand, twelve".