1038188263391 has 2 divisors, whose sum is σ = 1038188263392. Its totient is φ = 1038188263390.

The previous prime is 1038188263369. The next prime is 1038188263451. The reversal of 1038188263391 is 1933628818301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1038188263391 - 2³⁰ = 1037114521567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1038188263291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 519094131695 + 519094131696.

It is an arithmetic number, because the mean of its divisors is an integer number (519094131696).

Almost surely, 2^{1038188263391} is an apocalyptic number.

1038188263391 is a deficient number, since it is larger than the sum of its proper divisors (1).

1038188263391 is an equidigital number, since it uses as much as digits as its factorization.

1038188263391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1492992, while the sum is 53.

The spelling of 1038188263391 in words is "one trillion, thirty-eight billion, one hundred eighty-eight million, two hundred sixty-three thousand, three hundred ninety-one".