1912866966 has 96 divisors (see below), whose sum is σ = 4402944000. Its totient is φ = 599339520.

The previous prime is 1912866947. The next prime is 1912866973. The reversal of 1912866966 is 6696682191.

It is a happy number.

It is a super-2 number, since 2×1912866966² = 7318120059228090312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3193135 + ... + 3193733.

It is an arithmetic number, because the mean of its divisors is an integer number (45864000).

Almost surely, 2^1912866966 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1912866966, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2201472000).

1912866966 is an abundant number, since it is smaller than the sum of its proper divisors (2490077034).

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

1912866966 is a wasteful number, since it uses less digits than its factorization.

1912866966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794 (or 791 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 54.

The square root of 1912866966 is about 43736.3346200845. The cubic root of 1912866966 is about 1241.3519260471.

The spelling of 1912866966 in words is "one billion, nine hundred twelve million, eight hundred sixty-six thousand, nine hundred sixty-six".