1363628797440 has 640 divisors, whose sum is σ = 5380767608832. Its totient is φ = 286884495360.

The previous prime is 1363628797439. The next prime is 1363628797513. The reversal of 1363628797440 is 447978263631.

It is a tau number, because it is divible by the number of its divisors (640).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 260679625 + ... + 260684855.

Almost surely, 2^{1363628797440} is an apocalyptic number.

1363628797440 is a gapful number since it is divisible by the number (10) 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 1363628797440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2690383804416).

1363628797440 is an abundant number, since it is smaller than the sum of its proper divisors (4017138811392).

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

1363628797440 is a wasteful number, since it uses less digits than its factorization.

1363628797440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5650 (or 5634 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 60.

The spelling of 1363628797440 in words is "one trillion, three hundred sixty-three billion, six hundred twenty-eight million, seven hundred ninety-seven thousand, four hundred forty".