1821368453030 has 64 divisors (see below), whose sum is σ = 3880092336768. Its totient is φ = 602642626560.

The previous prime is 1821368453029. The next prime is 1821368453033. The reversal of 1821368453030 is 303548631281.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1821368453033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3797747 + ... + 4250366.

It is an arithmetic number, because the mean of its divisors is an integer number (60626442762).

Almost surely, 2^{1821368453030} is an apocalyptic number.

1821368453030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1821368453030 is an abundant number, since it is smaller than the sum of its proper divisors (2058723883738).

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

1821368453030 is a wasteful number, since it uses less digits than its factorization.

1821368453030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8048241.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 1821368453030 in words is "one trillion, eight hundred twenty-one billion, three hundred sixty-eight million, four hundred fifty-three thousand, thirty".