1394993195728 has 80 divisors (see below), whose sum is σ = 3115147760640. Its totient is φ = 598497724800.

The previous prime is 1394993195689. The next prime is 1394993195731. The reversal of 1394993195728 is 8275913994931.

It is a super-2 number, since 2×1394993195728² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136551 + ... + 1675897.

It is an arithmetic number, because the mean of its divisors is an integer number (38939347008).

Almost surely, 2^{1394993195728} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1394993195728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1557573880320).

1394993195728 is an abundant number, since it is smaller than the sum of its proper divisors (1720154564912).

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

1394993195728 is a wasteful number, since it uses less digits than its factorization.

1394993195728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1539656 (or 1539650 counting only the distinct ones).

The product of its digits is 132269760, while the sum is 70.

The spelling of 1394993195728 in words is "one trillion, three hundred ninety-four billion, nine hundred ninety-three million, one hundred ninety-five thousand, seven hundred twenty-eight".