1020447469584 has 45 divisors (see below), whose sum is σ = 2855869552029. Its totient is φ = 340145115840.

The previous prime is 1020447469577. The next prime is 1020447469609. The reversal of 1020447469584 is 4859647440201.

The square root of 1020447469584 is 1010172.

It is a perfect power (a square), and thus also a powerful number.

1020447469584 is a `hidden beast` number, since 1 + 0 + 2 + 0 + 4 + 474 + 6 + 95 + 84 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1016523699984 + 3923769600 = 1008228^2 + 62640^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1020447469584.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 12079974 + ... + 12164154.

Almost surely, 2^{1020447469584} is an apocalyptic number.

1020447469584 is the 1010172-nd square number.

It is an amenable number.

1020447469584 is an abundant number, since it is smaller than the sum of its proper divisors (1835422082445).

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

1020447469584 is an frugal number, since it uses more digits than its factorization.

1020447469584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168376 (or 84186 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 54.

The spelling of 1020447469584 in words is "one trillion, twenty billion, four hundred forty-seven million, four hundred sixty-nine thousand, five hundred eighty-four".