19306744699009 has 8 divisors (see below), whose sum is σ = 19498196626920. Its totient is φ = 19115298576000.

The previous prime is 19306744699001. The next prime is 19306744699031. The reversal of 19306744699009 is 90099644760391.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9200646400 + 19297544052609 = 95920^2 + 4392897^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19306744699009 - 2³ = 19306744699001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19306744699001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5392869 + ... + 8227789.

It is an arithmetic number, because the mean of its divisors is an integer number (2437274578365).

Almost surely, 2^{19306744699009} is an apocalyptic number.

It is an amenable number.

19306744699009 is a deficient number, since it is larger than the sum of its proper divisors (191451927911).

19306744699009 is a wasteful number, since it uses less digits than its factorization.

19306744699009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2902451.

The product of its (nonzero) digits is 79361856, while the sum is 67.

The spelling of 19306744699009 in words is "nineteen trillion, three hundred six billion, seven hundred forty-four million, six hundred ninety-nine thousand, nine".