1820632760320 has 120 divisors (see below), whose sum is σ = 4766604480288. Its totient is φ = 662047948800.

The previous prime is 1820632760299. The next prime is 1820632760339. The reversal of 1820632760320 is 230672360281.

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 109086 + ... + 1911325.

Almost surely, 2^{1820632760320} is an apocalyptic number.

1820632760320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1820632760320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2383302240144).

1820632760320 is an abundant number, since it is smaller than the sum of its proper divisors (2945971719968).

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

1820632760320 is an equidigital number, since it uses as much as digits as its factorization.

1820632760320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020455 (or 2020429 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The spelling of 1820632760320 in words is "one trillion, eight hundred twenty billion, six hundred thirty-two million, seven hundred sixty thousand, three hundred twenty".