1363889995776 has 840 divisors, whose sum is σ = 5102252851584. Its totient is φ = 354018263040.

The previous prime is 1363889995771. The next prime is 1363889995801. The reversal of 1363889995776 is 6775999883631.

1363889995776 is a `hidden beast` number, since 1 + 3 + 6 + 38 + 8 + 9 + 9 + 9 + 577 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a junction number, because it is equal to n+sod(n) for n = 1363889995695 and 1363889995704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1363889995771) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 919682331 + ... + 919683813.

Almost surely, 2^{1363889995776} is an apocalyptic number.

1363889995776 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 1363889995776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2551126425792).

1363889995776 is an abundant number, since it is smaller than the sum of its proper divisors (3738362855808).

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

1363889995776 is an frugal number, since it uses more digits than its factorization.

1363889995776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1547 (or 1506 counting only the distinct ones).

The product of its digits is 3703553280, while the sum is 81.

The spelling of 1363889995776 in words is "one trillion, three hundred sixty-three billion, eight hundred eighty-nine million, nine hundred ninety-five thousand, seven hundred seventy-six".