1723381785216 has 768 divisors, whose sum is σ = 6395978184960. Its totient is φ = 449760854016.

The previous prime is 1723381785197. The next prime is 1723381785247. The reversal of 1723381785216 is 6125871833271.

1723381785216 is a `hidden beast` number, since 1 + 7 + 2 + 33 + 81 + 7 + 8 + 521 + 6 = 666.

It is a super-2 number, since 2×1723381785216² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 274551870 + ... + 274558146.

It is an arithmetic number, because the mean of its divisors is an integer number (8328096595).

Almost surely, 2^{1723381785216} is an apocalyptic number.

1723381785216 is a gapful number since it is divisible by the number (16) 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 1723381785216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3197989092480).

1723381785216 is an abundant number, since it is smaller than the sum of its proper divisors (4672596399744).

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

1723381785216 is an equidigital number, since it uses as much as digits as its factorization.

1723381785216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6423 (or 6399 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The spelling of 1723381785216 in words is "one trillion, seven hundred twenty-three billion, three hundred eighty-one million, seven hundred eighty-five thousand, two hundred sixteen".