1393650878713 has 2 divisors, whose sum is σ = 1393650878714. Its totient is φ = 1393650878712.

The previous prime is 1393650878699. The next prime is 1393650878743. The reversal of 1393650878713 is 3178780563931.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1386336695184 + 7314183529 = 1177428^2 + 85523^2 .

It is a cyclic number.

It is not a de Polignac number, because 1393650878713 - 2⁵ = 1393650878681 is a prime.

It is not a weakly prime, because it can be changed into another prime (1393650878743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 696825439356 + 696825439357.

It is an arithmetic number, because the mean of its divisors is an integer number (696825439357).

Almost surely, 2^{1393650878713} is an apocalyptic number.

It is an amenable number.

1393650878713 is a deficient number, since it is larger than the sum of its proper divisors (1).

1393650878713 is an equidigital number, since it uses as much as digits as its factorization.

1393650878713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22861440, while the sum is 61.

The spelling of 1393650878713 in words is "one trillion, three hundred ninety-three billion, six hundred fifty million, eight hundred seventy-eight thousand, seven hundred thirteen".