1394472812544 has 576 divisors, whose sum is σ = 4726101088800. Its totient is φ = 388007460864.

The previous prime is 1394472812527. The next prime is 1394472812549. The reversal of 1394472812544 is 4452182744931.

It is a happy number.

1394472812544 is a `hidden beast` number, since 1 + 3 + 9 + 4 + 472 + 8 + 125 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is not an unprimeable number, because it can be changed into a prime (1394472812549) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 13032456139 + ... + 13032456245.

Almost surely, 2^{1394472812544} is an apocalyptic number.

1394472812544 is a gapful number since it is divisible by the number (14) 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 1394472812544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2363050544400).

1394472812544 is an abundant number, since it is smaller than the sum of its proper divisors (3331628276256).

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

1394472812544 is an frugal number, since it uses more digits than its factorization.

1394472812544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 178 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 54.

The spelling of 1394472812544 in words is "one trillion, three hundred ninety-four billion, four hundred seventy-two million, eight hundred twelve thousand, five hundred forty-four".