1396447943616 has 672 divisors, whose sum is σ = 4623323443200. Its totient is φ = 412899379200.

The previous prime is 1396447943593. The next prime is 1396447943617. The reversal of 1396447943616 is 6163497446931.

1396447943616 is a `hidden beast` number, since 1 + 3 + 9 + 6 + 4 + 4 + 7 + 9 + 4 + 3 + 616 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1396447943617) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1618131601 + ... + 1618132463.

It is an arithmetic number, because the mean of its divisors is an integer number (6879945600).

Almost surely, 2^{1396447943616} is an apocalyptic number.

1396447943616 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 1396447943616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2311661721600).

1396447943616 is an abundant number, since it is smaller than the sum of its proper divisors (3226875499584).

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

1396447943616 is a wasteful number, since it uses less digits than its factorization.

1396447943616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086 (or 1059 counting only the distinct ones).

The product of its digits is 70543872, while the sum is 63.

The spelling of 1396447943616 in words is "one trillion, three hundred ninety-six billion, four hundred forty-seven million, nine hundred forty-three thousand, six hundred sixteen".