1051969809599 has 2 divisors, whose sum is σ = 1051969809600. Its totient is φ = 1051969809598.

The previous prime is 1051969809593. The next prime is 1051969809623. The reversal of 1051969809599 is 9959089691501.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1051969809599 is a prime.

It is a super-2 number, since 2×1051969809599² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1051969809593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525984904799 + 525984904800.

It is an arithmetic number, because the mean of its divisors is an integer number (525984904800).

Almost surely, 2^{1051969809599} is an apocalyptic number.

1051969809599 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051969809599 is an equidigital number, since it uses as much as digits as its factorization.

1051969809599 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70858800, while the sum is 71.

The spelling of 1051969809599 in words is "one trillion, fifty-one billion, nine hundred sixty-nine million, eight hundred nine thousand, five hundred ninety-nine".