1801385291960 has 32 divisors (see below), whose sum is σ = 4057868586240. Its totient is φ = 719709373824.

The previous prime is 1801385291921. The next prime is 1801385291989. The reversal of 1801385291960 is 691925831081.

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 7 ways as a sum of consecutive naturals, for example, 26363672 + ... + 26431911.

It is an arithmetic number, because the mean of its divisors is an integer number (126808393320).

Almost surely, 2^{1801385291960} is an apocalyptic number.

1801385291960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1801385291960 is an abundant number, since it is smaller than the sum of its proper divisors (2256483294280).

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

1801385291960 is a wasteful number, since it uses less digits than its factorization.

1801385291960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52796447 (or 52796443 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 53.

The spelling of 1801385291960 in words is "one trillion, eight hundred one billion, three hundred eighty-five million, two hundred ninety-one thousand, nine hundred sixty".