1813654560 has 48 divisors (see below), whose sum is σ = 5713013376. Its totient is φ = 483641088.

The previous prime is 1813654547. The next prime is 1813654561. The reversal of 1813654560 is 654563181.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (1813654561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1888744 + ... + 1889703.

It is an arithmetic number, because the mean of its divisors is an integer number (119021112).

Almost surely, 2^1813654560 is an apocalyptic number.

1813654560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1813654560 is an abundant number, since it is smaller than the sum of its proper divisors (3899358816).

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

1813654560 is a wasteful number, since it uses less digits than its factorization.

1813654560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3778465 (or 3778457 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 1813654560 is about 42587.0233756716. The cubic root of 1813654560 is about 1219.5085721185.

The spelling of 1813654560 in words is "one billion, eight hundred thirteen million, six hundred fifty-four thousand, five hundred sixty".