1821471074304 has 192 divisors, whose sum is σ = 5876255548800. Its totient is φ = 489807151104.

The previous prime is 1821471074273. The next prime is 1821471074317. The reversal of 1821471074304 is 4034701741281.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-3 number, since 3×1821471074304³ (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 514509 + ... + 1976780.

It is an arithmetic number, because the mean of its divisors is an integer number (30605497650).

Almost surely, 2^{1821471074304} is an apocalyptic number.

1821471074304 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1821471074304 is an abundant number, since it is smaller than the sum of its proper divisors (4054784474496).

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

1821471074304 is a wasteful number, since it uses less digits than its factorization.

1821471074304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2491338 (or 2491318 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 42.

The spelling of 1821471074304 in words is "one trillion, eight hundred twenty-one billion, four hundred seventy-one million, seventy-four thousand, three hundred four".