1994514864 has 80 divisors (see below), whose sum is σ = 5288661504. Its totient is φ = 647334400.

The previous prime is 1994514857. The next prime is 1994514917. The reversal of 1994514864 is 4684154991.

1994514864 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1934029 + ... + 1935059.

Almost surely, 2^1994514864 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 1994514864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2644330752).

1994514864 is an abundant number, since it is smaller than the sum of its proper divisors (3294146640).

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

1994514864 is a wasteful number, since it uses less digits than its factorization.

1994514864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2066 (or 2060 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 51.

The square root of 1994514864 is about 44659.9917599634. The cubic root of 1994514864 is about 1258.7681889338.

The spelling of 1994514864 in words is "one billion, nine hundred ninety-four million, five hundred fourteen thousand, eight hundred sixty-four".