18053777969500 has 768 divisors, whose sum is σ = 52860688957440. Its totient is φ = 5230915200000.

The previous prime is 18053777969471. The next prime is 18053777969567. The reversal of 18053777969500 is 596977735081.

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 255 ways as a sum of consecutive naturals, for example, 25754319150 + ... + 25754319850.

It is an arithmetic number, because the mean of its divisors is an integer number (68829022080).

Almost surely, 2^{18053777969500} is an apocalyptic number.

18053777969500 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 18053777969500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26430344478720).

18053777969500 is an abundant number, since it is smaller than the sum of its proper divisors (34806910987940).

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

18053777969500 is a wasteful number, since it uses less digits than its factorization.

18053777969500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852 (or 778 counting only the distinct ones).

The product of its (nonzero) digits is 100018800, while the sum is 67.

The spelling of 18053777969500 in words is "eighteen trillion, fifty-three billion, seven hundred seventy-seven million, nine hundred sixty-nine thousand, five hundred".