1190921263787 has 2 divisors, whose sum is σ = 1190921263788. Its totient is φ = 1190921263786.

The previous prime is 1190921263769. The next prime is 1190921263867. The reversal of 1190921263787 is 7873621290911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1190921263787 - 2⁶ = 1190921263723 is a prime.

It is not a weakly prime, because it can be changed into another prime (1790921263787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 595460631893 + 595460631894.

It is an arithmetic number, because the mean of its divisors is an integer number (595460631894).

Almost surely, 2^{1190921263787} is an apocalyptic number.

1190921263787 is a deficient number, since it is larger than the sum of its proper divisors (1).

1190921263787 is an equidigital number, since it uses as much as digits as its factorization.

1190921263787 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2286144, while the sum is 56.

The spelling of 1190921263787 in words is "one trillion, one hundred ninety billion, nine hundred twenty-one million, two hundred sixty-three thousand, seven hundred eighty-seven".