1813988760336 has 45 divisors (see below), whose sum is σ = 5076694332021. Its totient is φ = 604657532736.

The previous prime is 1813988760329. The next prime is 1813988760347. The reversal of 1813988760336 is 6330678893181.

The square root of 1813988760336 is 1346844.

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

1813988760336 is a `hidden beast` number, since 1 + 8 + 13 + 9 + 8 + 8 + 7 + 603 + 3 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 469910250000 + 1344078510336 = 685500^2 + 1159344^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 16106010 + ... + 16218246.

Almost surely, 2^{1813988760336} is an apocalyptic number.

1813988760336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1813988760336 is the 1346844-th square number.

It is an amenable number.

1813988760336 is an abundant number, since it is smaller than the sum of its proper divisors (3262705571685).

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

1813988760336 is an frugal number, since it uses more digits than its factorization.

1813988760336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224488 (or 112242 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 63.

The spelling of 1813988760336 in words is "one trillion, eight hundred thirteen billion, nine hundred eighty-eight million, seven hundred sixty thousand, three hundred thirty-six".