1814613749776 has 15 divisors (see below), whose sum is σ = 3515824580061. Its totient is φ = 907304180736.

The previous prime is 1814613749671. The next prime is 1814613749791. The reversal of 1814613749776 is 6779473164181.

The square root of 1814613749776 is 1347076.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 921361935376 + 893251814400 = 959876^2 + 945120^2 .

It is a super-2 number, since 2×1814613749776² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5219920 + ... + 5556688.

Almost surely, 2^{1814613749776} is an apocalyptic number.

1814613749776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1814613749776 is the 1347076-th square number.

It is an amenable number.

1814613749776 is a deficient number, since it is larger than the sum of its proper divisors (1701210830285).

1814613749776 is an frugal number, since it uses more digits than its factorization.

1814613749776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673546 (or 336771 counting only the distinct ones).

The product of its digits is 42674688, while the sum is 64.

Multiplying 1814613749776 by its sum of digits (64), we get a square (116135279985664 = 10776608²).

The spelling of 1814613749776 in words is "one trillion, eight hundred fourteen billion, six hundred thirteen million, seven hundred forty-nine thousand, seven hundred seventy-six".