1398363912000 has 672 divisors, whose sum is σ = 5659119333504. Its totient is φ = 338992128000.

The previous prime is 1398363911993. The next prime is 1398363912037. The reversal of 1398363912000 is 2193638931.

1398363912000 is a `hidden beast` number, since 1 + 3 + 9 + 8 + 3 + 639 + 1 + 2 + 0 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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, 21351304 + ... + 21416696.

It is an arithmetic number, because the mean of its divisors is an integer number (8421308532).

Almost surely, 2^{1398363912000} is an apocalyptic number.

1398363912000 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 1398363912000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2829559666752).

1398363912000 is an abundant number, since it is smaller than the sum of its proper divisors (4260755421504).

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

1398363912000 is an equidigital number, since it uses as much as digits as its factorization.

1398363912000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65446 (or 65414 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The spelling of 1398363912000 in words is "one trillion, three hundred ninety-eight billion, three hundred sixty-three million, nine hundred twelve thousand".