1800620464384 has 81 divisors (see below), whose sum is σ = 4181365602561. Its totient is φ = 771630074880.

The previous prime is 1800620464333. The next prime is 1800620464427. The reversal of 1800620464384 is 4834640260081.

It is a happy number.

The square root of 1800620464384 is 1341872.

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

It can be written as a sum of positive squares in only one way, i.e., 1741006358784 + 59614105600 = 1319472^2 + 244160^2 .

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, 150283674 + ... + 150295654.

Almost surely, 2^{1800620464384} is an apocalyptic number.

1800620464384 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1800620464384 is the 1341872-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1800620464384

1800620464384 is an abundant number, since it is smaller than the sum of its proper divisors (2380745138177).

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

1800620464384 is an frugal number, since it uses more digits than its factorization.

1800620464384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23992 (or 11990 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 46.

The spelling of 1800620464384 in words is "one trillion, eight hundred billion, six hundred twenty million, four hundred sixty-four thousand, three hundred eighty-four".