1254842906109 has 16 divisors (see below), whose sum is σ = 1804304191872. Its totient is φ = 771148813248.

The previous prime is 1254842906087. The next prime is 1254842906111. The reversal of 1254842906109 is 9016092484521.

It is a happy number.

It is not a de Polignac number, because 1254842906109 - 2¹¹ = 1254842904061 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1254842906309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22100574 + ... + 22157279.

It is an arithmetic number, because the mean of its divisors is an integer number (112769011992).

Almost surely, 2^{1254842906109} is an apocalyptic number.

It is an amenable number.

1254842906109 is a deficient number, since it is larger than the sum of its proper divisors (549461285763).

1254842906109 is a wasteful number, since it uses less digits than its factorization.

1254842906109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44258596.

The product of its (nonzero) digits is 1244160, while the sum is 51.

The spelling of 1254842906109 in words is "one trillion, two hundred fifty-four billion, eight hundred forty-two million, nine hundred six thousand, one hundred nine".