1843990421804 has 48 divisors (see below), whose sum is σ = 3447488586528. Its totient is φ = 859969732608.

The previous prime is 1843990421789. The next prime is 1843990421813. The reversal of 1843990421804 is 4081240993481.

It is a super-2 number, since 2×1843990421804² (a number of 25 digits) contains 22 as substring.

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, 113307812 + ... + 113324084.

It is an arithmetic number, because the mean of its divisors is an integer number (71822678886).

Almost surely, 2^{1843990421804} is an apocalyptic number.

It is an amenable number.

1843990421804 is a deficient number, since it is larger than the sum of its proper divisors (1603498164724).

1843990421804 is a wasteful number, since it uses less digits than its factorization.

1843990421804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31154 (or 31152 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 53.

The spelling of 1843990421804 in words is "one trillion, eight hundred forty-three billion, nine hundred ninety million, four hundred twenty-one thousand, eight hundred four".