1800897546894 has 16 divisors (see below), whose sum is σ = 3669753492432. Its totient is φ = 588972782528.

The previous prime is 1800897546859. The next prime is 1800897546911. The reversal of 1800897546894 is 4986457980081.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2831599599 + ... + 2831600234.

It is an arithmetic number, because the mean of its divisors is an integer number (229359593277).

Almost surely, 2^{1800897546894} is an apocalyptic number.

1800897546894 is an abundant number, since it is smaller than the sum of its proper divisors (1868855945538).

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

1800897546894 is a wasteful number, since it uses less digits than its factorization.

1800897546894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5663199891.

The product of its (nonzero) digits is 139345920, while the sum is 69.

The spelling of 1800897546894 in words is "one trillion, eight hundred billion, eight hundred ninety-seven million, five hundred forty-six thousand, eight hundred ninety-four".