1393902640028 has 12 divisors (see below), whose sum is σ = 2439467707152. Its totient is φ = 696911866560.

The previous prime is 1393902640027. The next prime is 1393902640051. The reversal of 1393902640028 is 8200462093931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1393902640027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9783800 + ... + 9925247.

It is an arithmetic number, because the mean of its divisors is an integer number (203288975596).

Almost surely, 2^{1393902640028} is an apocalyptic number.

It is an amenable number.

1393902640028 is a deficient number, since it is larger than the sum of its proper divisors (1045565067124).

1393902640028 is a wasteful number, since it uses less digits than its factorization.

1393902640028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19726732 (or 19726730 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 47.

The spelling of 1393902640028 in words is "one trillion, three hundred ninety-three billion, nine hundred two million, six hundred forty thousand, twenty-eight".