1810394306560 has 384 divisors, whose sum is σ = 5075814481920. Its totient is φ = 606928896000.

The previous prime is 1810394306557. The next prime is 1810394306629. The reversal of 1810394306560 is 656034930181.

It is a self number, because there is not a number n which added to its sum of digits gives 1810394306560.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 646337160 + ... + 646339960.

It is an arithmetic number, because the mean of its divisors is an integer number (13218266880).

Almost surely, 2^{1810394306560} is an apocalyptic number.

1810394306560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1810394306560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2537907240960).

1810394306560 is an abundant number, since it is smaller than the sum of its proper divisors (3265420175360).

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

1810394306560 is a wasteful number, since it uses less digits than its factorization.

1810394306560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3033 (or 3013 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 46.

The spelling of 1810394306560 in words is "one trillion, eight hundred ten billion, three hundred ninety-four million, three hundred six thousand, five hundred sixty".