1986468704 has 48 divisors (see below), whose sum is σ = 4276359360. Its totient is φ = 900831360.

The previous prime is 1986468661. The next prime is 1986468727. The reversal of 1986468704 is 4078646891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149567 + ... + 162305.

It is an arithmetic number, because the mean of its divisors is an integer number (89090820).

Almost surely, 2^1986468704 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 1986468704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2138179680).

1986468704 is an abundant number, since it is smaller than the sum of its proper divisors (2289890656).

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

1986468704 is a wasteful number, since it uses less digits than its factorization.

1986468704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13203 (or 13195 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 53.

The square root of 1986468704 is about 44569.8183079088. The cubic root of 1986468704 is about 1257.0732236322.

The spelling of 1986468704 in words is "one billion, nine hundred eighty-six million, four hundred sixty-eight thousand, seven hundred four".