1538265380419 has 2 divisors, whose sum is σ = 1538265380420. Its totient is φ = 1538265380418.

The previous prime is 1538265380417. The next prime is 1538265380437. The reversal of 1538265380419 is 9140835628351.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1538265380419 - 2¹ = 1538265380417 is a prime.

It is a super-2 number, since 2×1538265380419² (a number of 25 digits) contains 22 as substring.

Together with 1538265380417, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1538265380419.

It is not a weakly prime, because it can be changed into another prime (1538265380411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 769132690209 + 769132690210.

It is an arithmetic number, because the mean of its divisors is an integer number (769132690210).

Almost surely, 2^{1538265380419} is an apocalyptic number.

1538265380419 is a deficient number, since it is larger than the sum of its proper divisors (1).

1538265380419 is an equidigital number, since it uses as much as digits as its factorization.

1538265380419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6220800, while the sum is 55.

The spelling of 1538265380419 in words is "one trillion, five hundred thirty-eight billion, two hundred sixty-five million, three hundred eighty thousand, four hundred nineteen".