1189021393507 has 2 divisors, whose sum is σ = 1189021393508. Its totient is φ = 1189021393506.

The previous prime is 1189021393501. The next prime is 1189021393627. The reversal of 1189021393507 is 7053931209811.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1189021393507 - 2¹⁵ = 1189021360739 is a prime.

It is not a weakly prime, because it can be changed into another prime (1189021393501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 594510696753 + 594510696754.

It is an arithmetic number, because the mean of its divisors is an integer number (594510696754).

Almost surely, 2^{1189021393507} is an apocalyptic number.

1189021393507 is a deficient number, since it is larger than the sum of its proper divisors (1).

1189021393507 is an equidigital number, since it uses as much as digits as its factorization.

1189021393507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 408240, while the sum is 49.

The spelling of 1189021393507 in words is "one trillion, one hundred eighty-nine billion, twenty-one million, three hundred ninety-three thousand, five hundred seven".