1389471846400 has 468 divisors, whose sum is σ = 3821311975936. Its totient is φ = 500716339200.

The previous prime is 1389471846397. The next prime is 1389471846421. The reversal of 1389471846400 is 46481749831.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1573580359 + ... + 1573581241.

Almost surely, 2^{1389471846400} is an apocalyptic number.

1389471846400 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 1389471846400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1910655987968).

1389471846400 is an abundant number, since it is smaller than the sum of its proper divisors (2431840129536).

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

1389471846400 is a wasteful number, since it uses less digits than its factorization.

1389471846400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066 (or 1028 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 55.

The spelling of 1389471846400 in words is "one trillion, three hundred eighty-nine billion, four hundred seventy-one million, eight hundred forty-six thousand, four hundred".