1390388621059 has 2 divisors, whose sum is σ = 1390388621060. Its totient is φ = 1390388621058.

The previous prime is 1390388620909. The next prime is 1390388621087. The reversal of 1390388621059 is 9501268830931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1390388621059 - 2²⁷ = 1390254403331 is a prime.

It is not a weakly prime, because it can be changed into another prime (1390388621759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 695194310529 + 695194310530.

It is an arithmetic number, because the mean of its divisors is an integer number (695194310530).

Almost surely, 2^{1390388621059} is an apocalyptic number.

1390388621059 is a deficient number, since it is larger than the sum of its proper divisors (1).

1390388621059 is an equidigital number, since it uses as much as digits as its factorization.

1390388621059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2799360, while the sum is 55.

The spelling of 1390388621059 in words is "one trillion, three hundred ninety billion, three hundred eighty-eight million, six hundred twenty-one thousand, fifty-nine".