18446745136050 has 864 divisors, whose sum is σ = 67111051849920. Its totient is φ = 3581538508800.

The previous prime is 18446745135983. The next prime is 18446745136063. The reversal of 18446745136050 is 5063154764481.

18446745136050 is a `hidden beast` number, since 1 + 8 + 4 + 4 + 6 + 74 + 513 + 6 + 0 + 50 = 666.

It is a super-2 number, since 2×18446745136050² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 431 ways as a sum of consecutive naturals, for example, 336389434 + ... + 336444266.

It is an arithmetic number, because the mean of its divisors is an integer number (77674828530).

Almost surely, 2^{18446745136050} is an apocalyptic number.

18446745136050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18446745136050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33555525924960).

18446745136050 is an abundant number, since it is smaller than the sum of its proper divisors (48664306713870).

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

18446745136050 is a wasteful number, since it uses less digits than its factorization.

18446745136050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54968 (or 54953 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 54.

The spelling of 18446745136050 in words is "eighteen trillion, four hundred forty-six billion, seven hundred forty-five million, one hundred thirty-six thousand, fifty".