1805145207846 has 32 divisors (see below), whose sum is σ = 3618457920000. Its totient is φ = 600354062880.

The previous prime is 1805145207839. The next prime is 1805145207871. The reversal of 1805145207846 is 6487025415081.

It is a happy number.

It is a congruent number.

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, 38697925 + ... + 38744543.

It is an arithmetic number, because the mean of its divisors is an integer number (113076810000).

Almost surely, 2^{1805145207846} is an apocalyptic number.

1805145207846 is an abundant number, since it is smaller than the sum of its proper divisors (1813312712154).

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

1805145207846 is a wasteful number, since it uses less digits than its factorization.

1805145207846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61084.

The product of its (nonzero) digits is 2150400, while the sum is 51.

The spelling of 1805145207846 in words is "one trillion, eight hundred five billion, one hundred forty-five million, two hundred seven thousand, eight hundred forty-six".