1804981184874 has 48 divisors (see below), whose sum is σ = 4469790424320. Its totient is φ = 515672771040.

The previous prime is 1804981184873. The next prime is 1804981184921. The reversal of 1804981184874 is 4784811894081.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (1804981184873) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1329664 + ... + 2319044.

It is an arithmetic number, because the mean of its divisors is an integer number (93120633840).

Almost surely, 2^{1804981184874} is an apocalyptic number.

1804981184874 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1804981184874 is an abundant number, since it is smaller than the sum of its proper divisors (2664809239446).

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

1804981184874 is a wasteful number, since it uses less digits than its factorization.

1804981184874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003875 (or 1003872 counting only the distinct ones).

The product of its (nonzero) digits is 16515072, while the sum is 63.

The spelling of 1804981184874 in words is "one trillion, eight hundred four billion, nine hundred eighty-one million, one hundred eighty-four thousand, eight hundred seventy-four".